Which is better transfer routine or update routine???

HI ALL,
I have read some documents, but I didnt get the real concept.
Can any one explain in detail as to how do we decide where to write the code i.e a start routine or transfer routine or update routine...and which one is better for a given scenario..
with example?

My scenario is like this:
master data InfoObject for e.g. Z_MATERIAL1 with 10 fields as attributes. It has two Source Systems feeding it; SAP and a flat file from a system called Product Catalog (PCAT).
The PCAT data is generally more reliable, hence, if a material XYZ comes from PCAT then PCAT is the owner of the material. SAP should not be able to update five critical fields of that material if PCAT owns the material.
For e.g. the below values comes from PCAT and Master data is updated.
PCAT
Material Group Type Price Curr Unit Prod Desc. Lang Class
XYZ      ABC   BRU 10.00 USD PC Inh   To    EN   001
When the data comes from SAP R/3, it should not update anything other than the last 4 fields.
SAP
Material Group Type Price Curr Unit Prod Desc. Lang Class
XYZ      ABC    BRU 20.00 USD BOX In   The    DE   003
Finally the data in the Master Data Object should be as below.
Material Group Type Price Curr Unit Prod Desc. Lang Class
XYZ      ABC   BRU 10.00 USD PC In    The    DE   003
where do i write the code...i have written this in start routine of transfer rules...i want to know the performance issues...

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Converting Tx Routines and Update Routines in to Tranformation in 2004's

Hi,
I have to get all the data from the existing BW 3.5 system in to the BI 7.0 system.
While the conversion process if I choose to create the transformation instead and installing the update rules and tranfer rules and migrating those to the tranformations.
Here I have three similiar questions:
i. So, if I copy the transfer routines in to the Transformation, then do I have to change any ABAP Code? Is there any syntax changes that have to be take care off.
ii. If I copy the Update routines in to the Transformation, then do I have to change any ABAP Code? Is there any syntax changes that have to be take care off.
iii. If I copy the Start routines in to the Transformation, then do I have to change any ABAP Code? Is there any syntax changes that have to be take care off.
I appreciate your help. Thanks!

1) TRAN_STRUCTURE to SOURCE_FIELDS
2) COMM_STRUCTURE to SOURCE_FIELDS
3) DATA_PACKAGE to SOURCE_PACKAGE
http://help.sap.com/saphelp_nw04s/helpdata/en/44/bd9b5be97c112ce10000000a11466f/content.htm

Is difference between update routine,start routine and transfer routine

Hi All,
What is difference between transfer routine and update routine.

Hi Venkat,
Routine is a set of ABAP code which is used to select a record or transform the field value at the time of loading the data.
Types of routines:
Tranfer Routines in Transfer Rules:
Start Routines in Transfer Rules:
Update Routines in Update Rules:
Start Routines in Update Rules:
Transfer/Update routine:
It's the set of ABAP code used in Transfer/Update rules. Transfer/Update routine is used to change the value of a particular field/object at the time of loading data.
Ex: Populate the amount/discount field by using Price and Quantity based on the given conditions.
Start Routine:
Start routine can be used in both Transfer Rules and Update Rules. Start routine is used to determine whether to load a particular record or not.
Ex: From the data related to the year 2005, we can select only the records which belong to a particular month or fiscal period.
Ultimately Transfer/Update routines are to update the value of a particular field. Start routines are used to select entire record.
You can get more details about routines at :
Routines
ROUTINES
Routines and Examples
Start Routines
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/60cecb1d-0a01-0010-8289-b14fd99062fa
take a look this doc for abap used in bw
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/4493c4a6-0301-0010-62a2-efd6ded61e04
ABAP book that always mentioned :
http://cma.zdnet.com/book/abap/
assign points if useful ***
Regards
CSM Reddy

Diff between Start ,transfer,update routines

hi
Plz tell me what is the difference between Start routine,transfer routine and update routine. Send me some real time examples.I would be very glad.
Regards
Ajay

Hi!
it is simple all of them are small program used in ETL process while loading in to BW.
Start routine:- is used in Transfer rules and update rules, this abap code is executed before starting the load and used in scenarios where we want to perform some operations on all the data example deleting some records before processing records in Update rules or transfer rules.
Update routine:- abap code used in update rules to transform or finding some field. ex:- may be you want to retrieve the field data from some data base tables based on the other data present in the infosource
Transfer Routine:- similar to the update routine but used in transfer rules.
with regards
ashwin
PS n: Assigning point to the helpful answers is the way of saying thanks in SDN. you can assign points by clicking on the appropriate radio button displayed next to the answers for your question. yellow for 2, green for 6 points(2)and blue for 10 points and to close the question and marked as problem solved. closing the threads which has a solution will help the members to deal with open issues with out wasting time on problems which has a solution and also to the people who encounter the same porblem in future. This is just to give you information as you are a new user.

Doubt regarding data declaration in update routine!

Hi,
i had added one field in cube, update rotuine for which is in due.
in the update routine logic i have to assign this field to another field if some condition satisfies!
the logic is --
if Hstatus=c
close_date=stdatum.
close_date is the field i had created and added in info cube definition.
now, how to declare these fileds in routine as it is asking me to declare the fields
can any body suggest me how to declare those fields!
Thanks,
Ravi

Hi,
In cube, for updating every keyfigure, all the characteristics will be taken into account. So, in cube if you choose a keyfigure in characteristic tab you can find all the characteristics. Likewise you can find for all the keyfigures.
So, Transfer routine for all kefigures will transfer the same routine of the characteristic for all the keyfigure. (that means if you choose different keyfigure and if you choose a the same characteristic you can find the same routine, no need to create separate ) If you choose no, it wont transer the same routine to all the keyfigures for the characteristic. You can define the separate routine for the characteristic for every keyfigure.
in ODS this is not the case. There only Keyfields only will be common for all the datafields.
rgrds,
v.sen.
Message was edited by:
Senthilkumar Viswanathan

Update routine infinite loop

Hello Experts,
For loading ODS2 we are making a lookup on ODS1 for 0material based on
purchaing document number, item line item.
Is there any mistake in the start routine or update routine.
Because the load goes in infinite loop. I think update routine should be changed.
Any suggestions are appreciated
Start routine:
data: begin of itab occurs 0,
        pur_doc like /BIC/AZODS100-OI_EBELN,
        item like /BIC/AZODS100-OI_EBELP,
        material like /BIC/AZODS100-material,
      end of itab.
clear itab.
select OI_EBELN OI_EBELP MAT_PLANT from /BIC/AZODS100
         into table itab.
Update routine for 0material
loop at itab where pur_doc = COMM_STRUCTURE-OI_EBELN
                   and item = COMM_STRUCTURE-OI_EBELP.
       RESULT = itab-matplant.
endloop.

Hi,
this takes a long time, because with each record of your data packaged it is doing the loop and scanning each row of the internal table. Use the following instead.
Start routine:
types: begin of t_itab,
pur_doc like /BIC/AZODS100-OI_EBELN,
item like /BIC/AZODS100-OI_EBELP,
material like /BIC/AZODS100-material,
end of t_itab.
data: itab type hashed table of t_itab with unique key pur_doc item.
select OI_EBELN OI_EBELP MAT_PLANT from /BIC/AZODS100
into table itab order by oi_ebeln oi_ebelp mat_plant.
I hope these fields are the key of the ods object.
Update routine for 0material
data: wa_itab type t_itab.
read table itab into wa_itab with table key pur_doc = COMM_STRUCTURE-OI_EBELN
item = COMM_STRUCTURE-OI_EBELP.
if sy-subrc = 0.
RESULT = wa_itab-matplant.
else.
clear result.
endif.
Hope this helps
regards
Siggi

Diff bet transfer and update routine

Hi experts,
can u plz.. clearly explain me.. the diff bet transfer and updatwe routine.. with scenario... i just want to know.. abt... it.. i went thru.. help.. but... not got clearly...
*points fully assured*
Regards
Rekha

Both the do the same.
Trnsfer routine will perform the required transformation in the transfer rules while the update routine will do the same in the update rules.
The purpose of these routines is when you wish to transform the incoming records by performing some checks and validations before the data get into the data targets.
A realtime example will be:
You bring in profit cemtre transaction data and for each profit centre record you wish to check if it has value type indicator. The business rule is if there is no such indicator, either reject the record or tag a value of 10.
Since this is to be checked for each record, we do it in the transfer routine or in update routine.
Also, you would have heard of start routine; if a logic is to be applied on the whole data package, then you do it in start routine.
In 7.0, all these things got replaced bu start routine, expert routine and end routine.
Ravi Thothadri

How to identify transfer and update routines are applied to my ods/ cubes?

hi all,
how to identify transfer nor update routines are been applied to my ods/ cube?
regds
hari

You need to go through the update Rule and Transfer Rule mapping and if you see any routine then there is a routine. Only manual process and also that is not too bad to go through them.
thanks.
Wond

No RETURNCODE 0 allowed in update routines in transfer mode

Hi,
After Applying a RETURNCODE = 4 to one characteristic in my update routine i get the following message:
No RETURNCODE <> 0 allowed in update routines in transfer mode
Message no. RSAU492
It seems that i doesn't allow me to modify a certain characteristic in my target ODS.
Any suggestions?
BR,
Xibi

Hi,
could it be this problem (as described in an OSS note) ?
"Symptom
Various errors occur when you load reporting point data from CRM with the DataSource 0CRM_UT_POD_ATTR and update the data in BW:
1. Insufficient data is delivered, and all fields are empty except for the external reporting point name (EXT_UI_BW).
2. The restriction according to the external reporting point name (EXT_UI_BW) in the BW scheduler has no effect.
3. The update in BW to the InfoObject 0UCCRMPOD terminates with the error message RSAU-492 (Return code <> 0 is invalid in overwrite MODE in update routines).
Other terms
Sales, commercial and industrial customers, IS-U-CRM integration, IS-U, quotation controlling, quotation planning
Reason and Prerequisites
There is an error in the extractor. In addition, the selection according to EXT_UI_BW cannot be supported in the InfoPackage for technical reasons. The case was not caught when the texts for 0UCCRMPOD were updated because the texts for 0UC_POD (IS-U reporting point) had not yet been loaded from IS-U.
Solution
The error is eliminated in CRM 4.0 Support Package 05 and BI Content Add-On 3.20 Support Package 11 or BI Content Add-on 3.30 Support Package 04 or BI Content Add-On 3.51 Support Package 01.
Correction instructions for the CRM section are attached."
/manfred

Hi pls give me any one update routine, transfer routine scenarios

hi pls give me any one update routine, transfer routine scenarios for to telling interviews (easy scenario for interviews)

Hi Venkat,
Pls chk this nice paper:
How To Routines within Transformations
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/6090a621-c170-2910-c1ab-d9203321ee19
Pls chk this links for samples & Examples:
http://help.sap.com/saphelp_nw04s/helpdata/en/e3/732c42be6fde2ce10000000a1550b0/content.htm
http://help.sap.com/saphelp_nw04s/helpdata/en/43/c3963dfbde4dede10000000a422035/content.htm
http://help.sap.com/saphelp_nw04s/helpdata/en/43/bcdb7801344defe10000000a422035/content.htm
http://help.sap.com/saphelp_nw04s/helpdata/en/43/bcdc6001344defe10000000a422035/frameset.htm
Hope this helps,
Regards
CSM Reddy

BI : Write BW 3.5 Transfer/Update routine to BI 7.0 Transformation routine

Hi Gurus,
I have 3.5 tranfer/ update routines. can anybody please tell me how to write the same routines in BI 7.0. I guess there are some syntax changes. For example below is the 3.5 update routine. Kindly advise me the steps or way of how to write the same routine in BI 7.0.
FORM compute_data_field
TABLES MONITOR STRUCTURE RSMONITOR "user defined monitoring
USING COMM_STRUCTURE LIKE /BIC/CS2LIS_02_ITM
 RECORD_NO LIKE SY-TABIX
 RECORD_ALL LIKE SY-TABIX
 SOURCE_SYSTEM LIKE RSUPDSIMULH-LOGSYS
CHANGING RESULT LIKE /BI0/APUR_O0100-NETPRICE
 RETURNCODE LIKE SY-SUBRC "Do not use!
 ABORT LIKE SY-SUBRC. "set ABORT <> 0 to cancel update
Thanks & regards ,
M.S
Edited by: M.S on Oct 26, 2009 12:10 PM

Hi ,
solved on my own. Thankyou very much..
thanks & regards,
M.S
Edited by: M.S on Oct 27, 2009 6:57 AM
Edited by: M.S on Oct 27, 2009 6:59 AM

Maintaining the mapping information and writing update routine to populate

Hi,
Its my requriment to get the transactional data from r/3, here in the transaction data i will get the data in following format
(for example)
Material no. Sales value quantity ..
M001 100 2
M002 200 4
M003 150 3
now my requirement is to take the quantity per material number and multiply it with a factor called as SBU factor
.. my problem is that this SBU factor is not maintained in r/3 means the mapping information of material no. with its relative SBU factor is not maintained. So i thought of two option as this mapping is fixed means it will not changed so we can maintain in bw system through 1) one time upload of flat file or
2) maintaning a table in BW with mapping
so users agreed to give the mapping information as follows
Material no. SBU factor
M001 5
M002 10
M003 7
now while uplading the transational data i need to take the SBU factor per material that is maintained through flat file or table and multiply it with quantity and store it quantity.
for example(the result i need in cube)
material no. sales value quantity(quantity * SBU)
M001 100 2*5=10
M002 200 4*10=40
M003 150 3*7=21
so i can do this at two level at transfer rules or update rules.
I need following clarification
1) shall i load the mapping information through flat file or maintain it in table?
2) If i will do the transformation at update rules so wht routine (start or update) should i write to get the SBU factor per material and do transformations
If possible send the sample routine.
Pls reply ASAP.
Thanks
Saleem.

Hi Saleem,
Nimesh is right..Do the multiplication in the Update rules.
If the data for this SBU factor is less and is always fixed, you can go for one time upload, else set up a RFC Call to load this data to BW from R/3 if no datasource for the same exist.
Else you can also maintain a table in BW, in which one time upload could be done by writing an ABAP, or manually. And then you can provide authorizsation to add more values to it, so that the table can be maintained.
And then in Update rules, use the table for look up and get the SBU Factor per material.
Some thing like
Select * from the <ODS table or Table name> into <internal table>
Loop at Data_Package.
Read table <internal table> for all values in Data_Package where internal table-Material = Data_package-MAterial.
If sy-subrc = 0.
Sales Value = Sales Value * internal table-SBU Factor.
ENDIF.
MODIFY DATA_PACKAGE.
ENDLOOP.
You might need to make more changes to this code as required.
Assign points if useful
Regards
Rohit

Update Routine to populate 0VENDOR from either of the 2 data source fields

Hi,
I have a requirement to write an update routine for 0VENDOR based on the below logic :
Create routines to populated BW Info Object u201CVendoru201D (0VENDOR) based on the following logic:
IF field u201CVendoru201D (ITM_VENDOR_ID) is populated from data source 0BBP_SC_TD_1, THEN populate 0VENDOR with that value
ELSE IF u201CPreferred Vendoru201D (ITM_PROPVEN_ID) is populated from data source 0BBP_SC_TD_1, THEN populate 0VENDOR with that value
ELSE IF neither u201CVendoru201D (ITM_VENDOR_ID) or u201CPreferred Vendoru201D (ITM_PROPVEN_ID) are populated from data source 0BBP_SC_TD_1, then 0VENDOR = NULL
Can anyone help me in converting this logic into ABAP routine.
Thanks,
Suchitra

Hi Suchitra,
In the Transfer Rules ... You will be mapping each field then the mapping field click on the button with Triangle then you can see the which type you want.
Then select the routine and select the datasource fields (don't forget to select the both fields VENDOR and PROPITM)...
Then give a name to routine ...
and in the code just change the COMM_STRUCTURE to TRANSFER_STRUCTURE.
Then you can get this .... done..
Regards,
Ravi Kanth

Update Routine & Start Routine in BI 7.0

Hi Experts,
We have recently upgraded from BI 7.0 , I am confused about where to write start routine & update routine in transformations of BI 7.0?
Please mention any pointers?
Thanks.
Sharat.

Hi
When you open the start routine you will see a routines info which gives you help on this.
A summary would be:
Update routine in transformation.
RESULT = source_field-material.
Basically you can acess the value of the record by using source_field.
Start routine.
The data comes in the form of an internal table with name SOURCE_PACKAGE.
You can access the values by looping into a work area.
LOOP AT SOURCE_PACKAGE assigning <source_fields>.
ENDLOOP.
End routine(This is a new feature in BI 7.0 where you can modify data when transformations are complete and before data is updated to info-providers)
The data comes in the form of an internal table with name RESULT_PACKAGE.
You can access the values by looping into a work area.
LOOP AT RESULT_PACKAGE assigning <result_fields>.
ENDLOOP.
Hope this helps you to understand the basics of the abap used in the transformations .
Regards
Samarpita

New field to be filled by update routine

Deltas are running, and added a new char to the cube and written update routine to fill the new char. How should i fill this new value for history. I don't want to reshedule the job from r/3. Will i be able to do from reconstruction (i doubt since our PSA Data is deleted every week). there is no ods between. What are options available.
Kunal

Hi Kunal,
If data is available in BW then you can write some coding(routine) to fill the data for history data you have to loop back(CUBE to CUBE) to CUBE.
Have a look:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/f421c86c-0801-0010-e88c-a07ccdc69601
Provide some more details. Which character, is available as attribute of any object...etc..
Hope it Helps
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Which is better transfer routine or update routine???

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