Key mapping

Hi All,
I have 3 fields in my source file Id,Category (Key Mapping) ,Name.
In Import Manager
I have mapped Remote Key field with ID .
Name with Name
category with Category Qualified Range (A 1-10)
I have source file like this
Id name category
11  10  A
In syndicator i have one more field Material Number .Mapped this with Material Number (should Get generated material  Number )
Name with Name
Category with Category
Remote Key value with Material Number
After syndication I am getting Id values in Material Number .(Instead of 1 I am getting 11)
Can any one let me know the solution?

Got It . Should not Map Id field with the Remote key in Import Manager.

Similar Messages

  • Remote System and Remote Key Mapping at a glance

    Hi,
    I want to discuss the concept of Remote System and Remote Key Mapping.
    Remote System is a logical system which is defined in MDM Console for a MDM Repository.
    We can define key mapping enabled at each table level.
    The key mapping is used to distinguish records at Data Manager after running the Data Import.
    Now 1 record can have 1 remote system with two different keys but two different records cannot have same remote system with same remote key. So, Remote key is an unique identifier for record for any remote system for each individual records.
    Now whenever we import data from a Remote System, the remote system and remote key are mapped for each individual records. Usually all records have different remote keys.
    Now, when syndicating back the record with default remote key is updated in the remote system that is sent by xml file format.
    If same record is updated two times from a same remote system, the remote key will be different and the record which is latest contains highest remote key.
    Now, I have to look at Data Syndication and Remote key.
    I have not done Data Syndication but my concept tell if there is duplicate record with same remote system but different remote keys both will be syndicated back. But if same record have two remote keys for same remote system then only the default remote key is syndicated back.
    Regards
    Kaushik Banerjee

    You are right Kaushik,
    I have not done Data Syndication but my concept tell if there is duplicate record with same remote system but different remote keys both will be syndicated back.
    Yes, but if they are duplicate, they needs to be merged.
    But if same record have two remote keys for same remote system then only the default remote key is syndicated back.
    This is after merging. So whichever remote key has tick mark in key mapping option(default) , it will be syndicated back.
    Pls refer to these links for better understanding.
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/80eb6ea5-2a2f-2b10-f68e-bf735a45705f
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/7051c376-f939-2b10-7da1-c4f8f9eecc8c%0c
    Hope this helps,
    + An

  • Key Mapping activates Versus Import Manager

    Hello,
    I have Key mapping activated in the console and Supress Unchaged Records activated in my syndication map.
    Case  : I import files (suppliers catalogs) to MDM via Import Manager manually. I am not sure about it, but since I activated Key mapping property,
    I noticed that for each supplier ID in the Supplier table, a lot of remote keys were created. Previously I only had one remote key for each supplier and now I have a list of other supplier's ID. ( Existent or nonexistent supplier IDs). This becomes an issue for my import, because  when I try to import a file where the supplier id does not exist in the MDM ( this scenario used to block my import and this is what a expect, as supplier is a key in my mapping),  the system automatically maps that nonexistent supplier to other supplier.
    Can you help me to understand if this is caused for the key mapping property ? Any Idea ?
    Thank you very much
    Luciana.

    Hello Stanley,
    The remote keys are form the same remote system.
    My story is : When I am importing a file , suppose my file has an invalid supplier ID. ( this means this supplier is not in the lookup table Suppliers)
    1)The import manager will give me a message such as : Map Supplier ID Values. This behavior was expected.
    2)I decided to test the automap. The invalid supplier was not mapped to a different value. I am ok with that.
    3)If the user ( dont ask me the reason ;-)) decides to map that invalid supplier ID to a different one, he/she is allowed to do so. I remember when the key mapping was not activated this option did not exist. The map and automap button was deactivated.
    What I am trying to make sure is : a remote key will be created for invalid suppliers ONLY if I choose to map it with a different supplier ID.
    Do you have any comments about it ?
    Thank you very much
    Luciana.

  • Key Mapping - Automation

    Hi , I have a following scenario that I want to automate within MDM :
    Vendor data coming from 3 remote systems ( say p-Carrd , Legacy Supply management and Invoice system) .
    1. Have loaded vendor data from all the systems in MDM using import manager .
    2. Have applied rules for match and then merge for likely identical records
    3. Now  I want to see the key mappings for the merged record to determine say what are the source records have been merged into a single record so one way is I could add the id of source systems for this MDM record but that is manual .
    Is there any way to automate this i.e. whenever I merge records and clieck on view key mapping I should have all the source system ids and remote systems appearing .? Key mapping is enabled for main table i.e. Vendor master
    Regards,
    Amit

    Hi Amit,
    first before importing any records, you should add your different source systems to your repository in MDM Console. You can do this in the Admin section. Having done this you can already import your source files for your source system. This step will automatically create a key mapping entry that can be seen in MDM Data Manager. Make sure that you map the actual key field of your record to the destination Remote Key field in your import map. If you now merge records from different source systems in MDM Data Manager, the merge will automatically append the remote keys of the  different systems to your merged record.
    Best regards
    Michael

  • Key Mapping in Forms 10g

    Dear All,
    I have migrated forms 3.0 in unix to forms 10g in windows 2003 server.
    In my older version, '+' key is mapped to do COMMIT. I want to map the same key in forms 10g. i tried the same in my frmweb.res. Pls find the mapping done by me below.
    *107 : 0 : "Add" : 36 : "Commit"*
    This works fine.
    The Issue is ... My cursor is in a text item .... I entered some data and press " + " key to save. The data is saved but at the same time the data in the text item is erased and + is getting replaced in the text item. I dont want my data to be erased and replaced with "+" symbol.
    How to map the "+" just for COMMIT and should not replace the data in the text item ?
    Can anyone help me to solve this issue...
    Thanks in Advance
    Sharf

    Unfortunately, sometimes the role of the developer is to educate the user/management what can/can't and should/shouldn't be done. If I were in your postition, I would make every effort to educate the user/management this this is a REALLY bad idea and encourage them to use the standard key mapping or use a modifed key mapping that uses just the F-Keys.
    The problem you have to overcome is that you have to not only tell Forms to do something different when the '+' key is pressed, but you have to have a listener in your application that is listening for the '+' key and supress the '+' character. To my knowledge, this cannot be done with native Forms built-ins. You would have to write your own Java solution (JavaBean or Pluggable Java Component [PJC]) to suppress the '+'. I have found that if you can provide the user/management with a cost estimate associated with the effort needed to code a particular feature. Once they realize the level effort and more importantly the cost associated with coding a particular feature, they typically will change their mind and see reason.
    I know this is not what you wanted to hear, but I hope it will help anyway. :(
    Craig...
    Edited by: CraigB on Aug 2, 2010 2:05 PM
    Edited by: CraigB on Aug 2, 2010 2:07 PM

  • Remote Key Mapping - Maintanance

    Hi All,
    I have Auto Id field in my repository; I would like to maintain this as my remote key value in my key mapping table ( automatically) in the following scenarios:
    1. Initial Loading
    2. On going ( from portal)
    3. Manual creating a record
    The issue is, since its auto id - not available until unless it get created?
    Do I need to syndicate all and loop back as Import and update remote key??? or any webservices and so?
    thanks,
    Alexander.

    Hi Raja
    You are correct on the approach. This can be done by automatic syndication of the newly created records from any of the channels( excel import, Portal, MDM GUI) to Outbound ready folder from where the files are copied to Inbound folder and automatically imported back in MDM. Steps to be followed can be-
    Create ports for syndication and auto Import
    The syndication map should contain mapping for Auto ID and any other unique field for reference. Assign this to Outbound port above.
    The map used for importing should contain mapping of Auto ID to remote key for the record.Assign this to Inbound port above.
    Define/set up a batch job for copying the files from Outbound Ready folder to Inbound Ready folders.
    hope this helps.
    Ravi

  • Remote key mapping in Category table

    Hi,
    We are not able to populate the Remote key in the Category table.
    In standard repository the Category table only has one field 'Category Name' which is defined as Display Field.
    In order for us to map customer file records which has UNSPSC code with our Category definitions we have added a field 'UNSPSC ID' in the Category table.
    As 'Category Name' is the field that should be displayed we need to use the Remote Key function in order to get a unique identifier in the Category table for automatic mapping of supplier records to the Categories in the Category table. However, we are not able to populate the Remote key field in the destination table Categories.
    The Category table has 'Key mapping' set to yes and in the Import manager we clone the field 'UNSPSC ID' and map the clone to destination field 'Remote Key'. However, 'Remote Key' does not come up as unique Matching field and performing the Import we can see that the Remote key is blank for all records in the category table.
    Does anyone out there know what needs to be done in order to populate the 'Remote Key' in the Category table?
    Please note that we are able to map and populate the Remote key field in other tables such as Product Group, Supplier etc but not in the Category table. Is there some special considerations as this is a taxonomy table?
    Regards
    Jan

    Dear Poster,
    As no response has been provided to the thread in some time I must assume the issue is resolved, if the question is still valid please create a new thread rephrasing the query and providing as much data as possible to promote response from the community.
    Best Regards,
    SDN SRM Moderation Team

  • Key mapping/ remote key

    Hi All,
    I  have some understanding of key mapping internal functionality.
    my question is ... should I use this key mapping feature from all look up tables, main table while importing from remote systems?
    should all my feilds have REMOTE KEY enabled.
    Lets say I have loaded data into my repository from 3 different remote systems(R1,R2,R3) using remote key feature.
    Now, I want to see all the records that belong to R1 only or R2 only?
    Can this be seen using remote mapping feature? or how can I see only specific records for one remote system.... should i create another field that identifies the source and just map it? ....... generally how do we handle this?
    Also, have uploaded the data for my lookup table DIVISIONS,when i try syndicating it for remote R1......
    in my destination preview i can see some records that belong to only R2 and R3 also. I mean I am not able to see only the
    records belong to R1 system.
    I mapped
    division <-> div
    desc     <-> desc
    there are two more keys like remote key, v...... Should I also map these keys?
    Pls let me know,
    Thanks & regards,
    Vee

    Hi,
    my question is ... should I use this key mapping feature from all look up tables, main table while importing from remote systems?
    should all my feilds have REMOTE KEY enabled.
    1. It is totally dpeend upon business requirement which table you want to  make remote enable.
        The main reason to use remote key is to syndiacte the data to remote system specific.
         So if you are syndication your subtables to then it is good to make remote key enable.
    2. Only tables are remote key enabled not the fields.
    Lets say I have loaded data into my repository from 3 different remote systems(R1,R2,R3) using remote key feature.
    Now, I want to see all the records that belong to R1 only or R2 only?
    Can this be seen using remote mapping feature? or how can I see only specific records for one remote system.... should i create another field that identifies the source and just map it? ....... generally how do we handle this?
    This is not possible as standard way.
    But workaround is when you map the source field to remote key at destination side in import manager,just make the clone of source field and map it to the new fields to  store  the system from where the records came.
    So in data manager you can search on this field  to see only  records that is specific to some remote system.
    Also, have uploaded the data for my lookup table DIVISIONS,when i try syndicating it for remote R1......
    in my destination preview i can see some records that belong to only R2 and R3 also. I mean I am not able to see only the
    records belong to R1 system.
    I mapped
    division <-> div
    desc <-> desc
    there are two more keys like remote key, v...... Should I also map these keys?
    Yes you have to map these fields as well.
    Even after mapping this  option if you want to syndicate all the remote system records then there is option "override remote keys".after enabling this option  there is record generated for each remote system.
    hope it helps you.
    Thanks,
    Sudhanshu

  • Problem with childs nodes and automatic key mapping in a Data Object

    Hi experts!
    I'm doing the service order tutorial from the mobile help at [this link|http://help.sap.com/saphelp_nwmobile71/helpdata/en/21/9b5b924c3b434fba4767731794b029/frameset.htm] and I have a problem...
    In the topic "Modeling the Equipment Data Object", says you have to mark the "Automatic Key Mapping" checkbox. So when I had to create a third child node ( the location node ) the system raised an exception with the message "Deselect automatic key mapping flag for more than two-level nodes". I'm trying deselecting the flag and creating the location node, but when I want mark again the automatic key mapping flag, this is disabled.
    What can I do to solve this and create the three child nodes with the flag marked? It's a configuration thing?
    Any help it's very welcome. Thanks in advance.
    Best regards,
    Simon.

    The thing is: Its not allowed to use automatic keymapping if you have more than two levels. This is why the message showed up, and this is why its been disabled.
    What automatic keymapping does: Figures out automatically which child node belongs to which parent (by guessing from the field name and type, which fields in the child correspond to which key fields of the parent).
    On three levels, this becomes more complicated => Its disabled.
    How to do keymapping yourself instead of having the DOE do it automatically: Do 'Explicit keymapping' from each child to its parent. Explicit keymapping is done by clicking on the corresponding menu button in the child node. Here you need to associate child node fields (they need not be key fields of the child, but they are allowed to be that as well) to each of its parent nodes key fields (so that each child can be associated to its parent).
    Cheers

  • REP-52005: The specified key userlogin does not exist in the key map file.

    Hi,
    I am using oracle 11g report server. I am getting the error of REP-52005: The specified key userlogin does not exist in the key map file.
    I updated the user_string in cgicmd.dat file. My cgicmd.dat file content is below
    ; OracleAS Reports Services                       ;
    ; CGICMD.DAT                                      ;
    ; Example CGICMD.DAT Mapping file                 ;
    ; Syntax: 
    ;      KEY : VALUE
    ; Where:
    ; KEY - the first argument of the rwservlet URL request (case sensitive).
    ; VALUE - command line parameters and/or special parameters.
    ; Keys can be referenced in the following ways:
    ;    1. Parameter on command line to the reports servlet
    ;          e.g. http://machine/servlet/rwservlet?KEY
    ;    2. Parameter on command line to a reports jsp
    ;          e.g. http://machine/mydir/myreport.jsp?KEY
    ;    3. Within a reports jsp - in the rw:report custom tag
    ;          e.g. <rw:report parameters="KEY">
    ; In addition to the Reports Server command line parameters, VALUE can include special parameters
    ; represented as "%X", where X identifies the parameter. Currently recognized special
    ; parameters:
    ;  %0 - %9 - 0..9 arguments from original rwservlet URL request. Note that %0 refers to the key itself.
    ;  %* - entire contents (all arguments) of original rwservlet URL request.
    ;  %D - request users to input database userid everytime they run the report.
    ;  %P - request for report parameter form in HTML format. It generates the PARAMFORM=HTML
    ;       construction on the first submission of the URL and PARAMFORM=NO upon parameter form submission.
    ; CGICMD.DAT Usage Notes
    ;   1. Multiple keys in this file MUST be separated by an EXTRA empty line.
    ;   2. Extra spaces are ignored. Multi-line entries allowed.
    ;   3. Lines starting with ";" character are treated as a comments.
    ;   4. Comments within a key or key value are NOT allowed.
    ;   5. NLS language support is provided and can be used (encoding should match the one
    ;      used in HTML request - no language conversion of any kind is attempted.
    ;   6. For %P special parameter, HTML format is by default mapped to the HTMLTABLE format in this release.
    ;      The HTML format in the future may be mapped to the HTMLCSS format.
    ;;;;;;;;;;;; Example Key Entries
    ;  Example 1:  Run a simple breakb report and output to HTML
    orqa: report=breakb.rdf destype=cache desformat=html server=repserver
    ; Example 2: prompt for userid the first time, then use database userid stored in the cookie subsequently.
    report_defaultid: report=breakb.rdf destype=cache desformat=html server=repserver
    ; Example 3: use %D to require user authentication every time
    report_secure: report=breakb.rdf destype=cache desformat=html server=repserver1 %D
    ; Example 4:  Take all arguments from URL and send it to the reports server
    run: %*
    ; Example 5:  Run breakb report with HTML parameter form.
    breakbparam : report=breakb.rdf destype=cache desformat=html server=repserver userid=scott/tiger@mydb %P
    ; Example 6: take all URL arguments, and also generate a HTML parameter form  
    runp: %* %P
    ; Example 7: Run an Express Report. Replace <MYHOST> with the name of the machine running the Express server. The
    ; builder on-line help explains the rest of the parameters (the /sl, st etc. etc.)
    express: report=my_expr_rep express_server="server=ncacn_ip_tcp:<MYHOST>/sl=1/st=1/ct=0/sv=1/" desformat=htmlcss userid=scott/tiger@mydb destype=cache server=repserver
    ;;;;;;;;;;;; Keys for Reports Demos
    ; Using default/in-process server.
    ; JSPs
    ;charthyperlink_ias: userid="scott/tiger@(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=%DBHOSTNAME%)(PORT=%DBPORT%))(CONNECT_DATA=(SID=%DBSID%)))" %*
    ;charthyperlink_ids: userid=scott/tiger@ %*
    ;barcodeweb:         userid=oe
    ;parmformjsp:        userid=oe
    ;tutorial:           userid=oe
    ; Paper Reports
    ;xmldata:            userid=oe report=inventory_report.rdf destype=cache p_filelocation="http://%HOSTNAME%:%OC4JPORT%/reports/examples/xml_pds/scripts/" desformat=pdf
    ;barcodepaper:       userid=oe report=shippingmanifest.rdf destype=cache desformat=pdf
    ;distributionpaper:  userid=oe report=inventory_report_dist.rdf distribute=yes destination=exampledistribution.xml
    ;pdfenhancements:    userid=oe report=utf8test.rdf destype=cache desformat=pdf
    userlogin : userid=SYMFINBTOTEST@fin10r21 %*
    As in the above file i have added a key as userlogin at the end of the file. But the reports server does not take the key that i have given. I followed the same steps provided in oracle docs. I used "showmap" to check the cgicmd file that is used by the reports
    http://aspirevm8-17.aspiresys.com:9002/reports/rwservlet/showmap?server=bluQubeReportsAtLocalEnv&destype&userid=SYMFINBT…
    It shows me the content of the cgicmd.dat file and it also shows my updations. But in the "Parsed Map File Entries" it does not show my key value pair
    Parsed Map File Entries
    Return to Top
    Key Name
    Value
    runp
    %* %P
    breakbparam
    report=breakb.rdf destype=cache desformat=html server=repserver userid=scott@mydb %P
    report_defaultid
    report=breakb.rdf destype=cache desformat=html server=repserver
    run
    report_secure
    report=breakb.rdf destype=cache desformat=html server=repserver %D
    express
    report=my_expr_rep express_server="server=ncacn_ip_tcp:<MYHOST>/sl=1/st=1/ct=0/sv=1/" desformat=htmlcss userid=scott@mydb destype=cache server=repserver
    orqa
    report=breakb.rdf destype=cache desformat=html server=repserver
    Please help me to to make the key being populated here and being used by the reports server.
    Thanks,
    Priya

    uncomment #KEYPMAPFILE=CGICMD.DAT. remove the #
    then for development set
    reloadkeymap=yes (same file - rwservlet.properties).
    Now it should reload everytime. (otherwise for every change u need to restart oc4j_bi_forms)
    (For * production* may be you want to set reloadkeymap=no once all testing is done)
    see cgicmd.dat for many examples of using keymap file
    [ All Docs for all versions ]
    http://otn.oracle.com/documentation/reports.html
    [ Publishing reports to web - 10G ]
    http://download.oracle.com/docs/html/B10314_01/toc.htm (html)
    http://download.oracle.com/docs/pdf/B10314_01.pdf (pdf)
    [ Building reports - 10G ]
    http://download.oracle.com/docs/pdf/B10602_01.pdf (pdf)
    http://download.oracle.com/docs/html/B10602_01/toc.htm (html)
    [ Forms Reports Integration whitepaper 9i/10g ]
    9i - http://otn.oracle.com/products/forms/pdf/frm9isrw9i.pdf
    10g - http://www.oracle.com/technology/products/forms/pdf/10g/frm10gsrw10g.pdf
    http://www.oracle.com/technology/products/forms/techlisting10g.html
    ---------------------------------------------------------------------------------

  • Problem with key mapping in 10g

    Hello,
    my client is using key mapping on their reports server. It works fine except for parameter values...
    I can run this URL:
    http://<host>/reports/rwservlet?kr+2002+20
    and there is a mapping for kr in the cgicmd.dat file like this:
    kr: report=KR userid=<user>/<pw>@orcl desformat=html destype=cache p_verksamhetsar=%1
    p_verksamhetsar is a parameter of the report (meaning year).
    My problem is that when the report is run using the above URL the parameter gets the value 2002=
    An equal sign is added! The year column is a varchar2 so the query works but gives no result.
    I get the same problem if I try this URL:
    http://<host>/reports/rwservlet?kr%262002%2620
    If I run this URL it works fine (with a result as well):
    http://<host>/reports/rwservlet?report=KR&userid=<user>/<pw>@orcl&desformat=html&destype=cache&p_verksamhetsar=2004
    Any suggestions?
    Kind regards
    Tomas Albinsson

    Hi Kranthi,
    I think you mean %* at the end, meaning all parameters sent.
    Yes, I use this approach now as I've been unable to get %1, %2 etc to work.
    Strange, because %1 is described in the manual and I feel I use it like they say.
    Well, it works in a way, just that = is appended to the values.
    It has that buggy smell :)
    Kind regards
    Tomas

  • Key mapping (short cut) in JDeveloper

    What is the key mapping (short cut) in JDeveloper for:
    1. highlight the calling function name in the file, how the go to the function definition part (in the same or different file)?
    2. highlight the class name in the file, how to open the file of that class?
    Thanks in advance!

    any help please...

  • KEY MAPPING IN FMRWEB.RES DEPENDS ON ITEM ELEMENT CURSOR STANDS ON

    Key mapping in fmrweb.res depends on item element cursor stands on.
    If cursor stands on checkbox item, key-f2 (our ctrl-ins key shortcut) trigger fires, but if cursor stands on text item, it doesn't work.
    I would appreciate any suggestion.

    http://forums.oracle.com/forums/ann.jspa?annID=432

  • Can Key Mapping details be available as a serach parameter in MDM DM?

    Hello Experts,
    Is there any way that we can display or search certain Records in Data Manager/Portal based on the Key Mapping details (Remote System/Key Value assigned for any remote system).
    The scenario where I am trying to apply this is:
    I have say lacs of records in MDM and i have merged certain records into a new record (Record1) and assigned key mappings to this record1 to point to System1 and System2. 
    System1 has the key value as ABC and System2 has value set as DEF. If any user wants to now find the merged record based on the key value of system2 (i.e DEF), how will he proceed?
    Kindly advice.
    Thanks and Regrads,
    Elizabeth.

    Hi Elizabeth,
    In MDM Data Manager, once the record is merged you can see only one record in place of all merged records.
    In your case ABC from system1 and DEF from system2 are merged into ABC.
    So in data manager you can just search the record based on ABC but not DEF.
    However, if you select the record ABC and right click and select Edit key mappings, then you will see both the records and its respective system.
    So the work around is using syndicator, send the records in excel sheet or CSV file where you can send both the merged records with merged values.
    The users can make a search in that CSV file with DEF as well.
    Regards,
    Sravan

  • Steps in Key mapping

    Hi all,
    i have gone through many forum's regarding key mapping.
    i can see that the following are used..
    --> remote systems
    --> key mapping option in table-field properties
    --> key mapping option in table properties.
    -->key generation(none, range, qualified range) field in remote system properties.
    But never understood like in which order we need to define all the above, what is the relation b/w them.
    i have gone through some theory in sdn regarding key mapping but unable to get the logic..
    can any one one show me with 2 records in 2 tables so, that i can clear my confusion.
    Thanks in advance.
    Regards
    phani

    Hi Phani,
    first you should understand the basic idea of key mapping. MDM usually wants to consolidate master (objects like vendors, customers, and so on) and/or reference (lookup tables like countries, regions, and so on) data. The idea is to load this data from various remote systems into MDM, compare and match the data, and in some cases merge multiple records into a single one. Let's take an example.
    Image you have attache two remote systems to MDM. The first is an ERP system, the second a CRM system. Both system contains countries as reference data. In ERP, your country India looks like
    Name = India
    Code = INDIA
    whereas in CRM it looks like
    Name = India
    Code = IND
    It is obvious that the country is the same, but the systems use a different internal code. Now you load this data into MDM. What do you do? Do you want to create two records having different codes? Or do you want to "merge" the indentical records into a single one. The common decision in MDM is the second one.
    But what happens now if you send customers from ERP and CRM to MDM? Usually the Customer message contains the Country CODE but not the Country NAME. From ERP the message could look like:
    Customer = Mr. X
    Country = INDIA
    whereas from CRM the message could look like
    Customer = Mr. X
    Country = IND
    Surely you want to map the different code in both case to the same country "India". That's why you use key mapping in MDM. Key Mapping allows MDM to store different codes for the same data. So in MDM you store just one record, but if you receive and/or send data from and/or to remote systems, you can always ensure that you store and/or send the correct codes.
    Hope that clarifies your doubts about key mapping in general?
    OK, now regarding your question about "Update NULL fields only":
    In Import Manager you have several options for data import. If you import for the very first time (for RS1), your table in MDM is usually empty. That why you need to "Create" the records. If you import the second time (for RS2), your table in MDM already contains data. Depending on the matching field for import, several options are now possible. If Import Manager is not able to match the record you want to import against any other existing in the repository, you have to "Create" the new record. If Import Manager is able to match the record that you want to import with a record of your repository table, you can choose what happens next. "Update NULL fields only" compares the record you want to import with the existing values in MDM. In your case, following info is already part in MDM:
    Country = India
    Code = INDIA
    Remote Key RS1 = INDIA
    Remote Key RS2 = NULL
    Now the file you want to import contains the following values:
    Remote System = RS2
    Country = India
    Code = IND
    Import Manager identifies that only "Remote Key RS2" is NULL. All other fields already have values. As you choose to "Update NULL Fields only", only Remote Key RS2 gets a new value. If you choose a different option, e.g. "Update All Mapped Fields" Import Manager would update the Country and Code fields, too.
    Best regards
    Michael

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