What is the way of find the sub part no(material no) of the main part no
Hi,
in md04 how can i get the link(field)of the main material no with the sub material no. I need the field which links its.
Hi kamlesh ,
If you intend to see the BOM components ( sub materials )for the main material in MD04 then -
- In MD04 screen , goto to "<b>Environment</b>" in top menubar and select option "<b>Product Structure</b>"
- In the next displayed screen you can expand the available BOMs to view the components details.
Regards,
Nilesh
Similar Messages
-
What r the main preformence tunning things to fallow in programming..?
What r the main preformence tunning things to fallow in programming..?
HI
Ways of Performance Tuning
1. Selection Criteria
2. Select Statements
Select Queries
SQL Interface
Aggregate Functions
For all Entries
Select Over more than one internal table
Selection Criteria
1. Restrict the data to the selection criteria itself, rather than filtering it out using the ABAP code using CHECK statement.
2. Select with selection list.
SELECT * FROM SBOOK INTO SBOOK_WA.
CHECK: SBOOK_WA-CARRID = 'LH' AND
SBOOK_WA-CONNID = '0400'.
ENDSELECT.
The above code can be much more optimized by the code written below which avoids CHECK, selects with selection list
SELECT CARRID CONNID FLDATE BOOKID FROM SBOOK INTO TABLE T_SBOOK
WHERE SBOOK_WA-CARRID = 'LH' AND
SBOOK_WA-CONNID = '0400'.
Select Statements Select Queries
1. Avoid nested selects
SELECT * FROM EKKO INTO EKKO_WA.
SELECT * FROM EKAN INTO EKAN_WA
WHERE EBELN = EKKO_WA-EBELN.
ENDSELECT.
ENDSELECT.
The above code can be much more optimized by the code written below.
SELECT PF1 PF2 FF3 FF4 INTO TABLE ITAB
FROM EKKO AS P INNER JOIN EKAN AS F
ON PEBELN = FEBELN.
Note: A simple SELECT loop is a single database access whose result is passed to the ABAP program line by line. Nested SELECT loops mean that the number of accesses in the inner loop is multiplied by the number of accesses in the outer loop. One should therefore use nested SELECT loops only if the selection in the outer loop contains very few lines or the outer loop is a SELECT SINGLE statement.
2. Select all the records in a single shot using into table clause of select statement rather than to use Append statements.
SELECT * FROM SBOOK INTO SBOOK_WA.
CHECK: SBOOK_WA-CARRID = 'LH' AND
SBOOK_WA-CONNID = '0400'.
ENDSELECT.
The above code can be much more optimized by the code written below which avoids CHECK, selects with selection list and puts the data in one shot using into table
SELECT CARRID CONNID FLDATE BOOKID FROM SBOOK INTO TABLE T_SBOOK
WHERE SBOOK_WA-CARRID = 'LH' AND
SBOOK_WA-CONNID = '0400'.
3. When a base table has multiple indices, the where clause should be in the order of the index, either a primary or a secondary index.
To choose an index, the optimizer checks the field names specified in the where clause and then uses an index that has the same order of the fields. In certain scenarios, it is advisable to check whether a new index can speed up the performance of a program. This will come handy in programs that access data from the finance tables.
4. For testing existence, use Select.. Up to 1 rows statement instead of a Select-Endselect-loop with an Exit.
SELECT * FROM SBOOK INTO SBOOK_WA
UP TO 1 ROWS
WHERE CARRID = 'LH'.
ENDSELECT.
The above code is more optimized as compared to the code mentioned below for testing existence of a record.
SELECT * FROM SBOOK INTO SBOOK_WA
WHERE CARRID = 'LH'.
EXIT.
ENDSELECT.
5. Use Select Single if all primary key fields are supplied in the Where condition .
If all primary key fields are supplied in the Where conditions you can even use Select Single.
Select Single requires one communication with the database system, whereas Select-Endselect needs two.
Select Statements SQL Interface
1. Use column updates instead of single-row updates
to update your database tables.
SELECT * FROM SFLIGHT INTO SFLIGHT_WA.
SFLIGHT_WA-SEATSOCC =
SFLIGHT_WA-SEATSOCC - 1.
UPDATE SFLIGHT FROM SFLIGHT_WA.
ENDSELECT.
The above mentioned code can be more optimized by using the following code
UPDATE SFLIGHT
SET SEATSOCC = SEATSOCC - 1.
2. For all frequently used Select statements, try to use an index.
SELECT * FROM SBOOK CLIENT SPECIFIED INTO SBOOK_WA
WHERE CARRID = 'LH'
AND CONNID = '0400'.
ENDSELECT.
The above mentioned code can be more optimized by using the following code
SELECT * FROM SBOOK CLIENT SPECIFIED INTO SBOOK_WA
WHERE MANDT IN ( SELECT MANDT FROM T000 )
AND CARRID = 'LH'
AND CONNID = '0400'.
ENDSELECT.
3. Using buffered tables improves the performance considerably.
Bypassing the buffer increases the network considerably
SELECT SINGLE * FROM T100 INTO T100_WA
BYPASSING BUFFER
WHERE SPRSL = 'D'
AND ARBGB = '00'
AND MSGNR = '999'.
The above mentioned code can be more optimized by using the following code
SELECT SINGLE * FROM T100 INTO T100_WA
WHERE SPRSL = 'D'
AND ARBGB = '00'
AND MSGNR = '999'.
Select Statements Aggregate Functions
If you want to find the maximum, minimum, sum and average value or the count of a database column, use a select list with aggregate functions instead of computing the aggregates yourself.
Some of the Aggregate functions allowed in SAP are MAX, MIN, AVG, SUM, COUNT, COUNT( * )
Consider the following extract.
Maxno = 0.
Select * from zflight where airln = LF and cntry = IN.
Check zflight-fligh > maxno.
Maxno = zflight-fligh.
Endselect.
The above mentioned code can be much more optimized by using the following code.
Select max( fligh ) from zflight into maxno where airln = LF and cntry = IN.
Select Statements For All Entries
The for all entries creates a where clause, where all the entries in the driver table are combined with OR. If the number of entries in the driver table is larger than rsdb/max_blocking_factor, several similar SQL statements are executed to limit the length of the WHERE clause.
The plus
Large amount of data
Mixing processing and reading of data
Fast internal reprocessing of data
Fast
The Minus
Difficult to program/understand
Memory could be critical (use FREE or PACKAGE size)
Points to be must considered FOR ALL ENTRIES
Check that data is present in the driver table
Sorting the driver table
Removing duplicates from the driver table
Consider the following piece of extract
Loop at int_cntry.
Select single * from zfligh into int_fligh
where cntry = int_cntry-cntry.
Append int_fligh.
Endloop.
The above mentioned can be more optimized by using the following code.
Sort int_cntry by cntry.
Delete adjacent duplicates from int_cntry.
If NOT int_cntry[] is INITIAL.
Select * from zfligh appending table int_fligh
For all entries in int_cntry
Where cntry = int_cntry-cntry.
Endif.
Select Statements Select Over more than one Internal table
1. Its better to use a views instead of nested Select statements.
SELECT * FROM DD01L INTO DD01L_WA
WHERE DOMNAME LIKE 'CHAR%'
AND AS4LOCAL = 'A'.
SELECT SINGLE * FROM DD01T INTO DD01T_WA
WHERE DOMNAME = DD01L_WA-DOMNAME
AND AS4LOCAL = 'A'
AND AS4VERS = DD01L_WA-AS4VERS
AND DDLANGUAGE = SY-LANGU.
ENDSELECT.
The above code can be more optimized by extracting all the data from view DD01V_WA
SELECT * FROM DD01V INTO DD01V_WA
WHERE DOMNAME LIKE 'CHAR%'
AND DDLANGUAGE = SY-LANGU.
ENDSELECT
2. To read data from several logically connected tables use a join instead of nested Select statements. Joins are preferred only if all the primary key are available in WHERE clause for the tables that are joined. If the primary keys are not provided in join the Joining of tables itself takes time.
SELECT * FROM EKKO INTO EKKO_WA.
SELECT * FROM EKAN INTO EKAN_WA
WHERE EBELN = EKKO_WA-EBELN.
ENDSELECT.
ENDSELECT.
The above code can be much more optimized by the code written below.
SELECT PF1 PF2 FF3 FF4 INTO TABLE ITAB
FROM EKKO AS P INNER JOIN EKAN AS F
ON PEBELN = FEBELN.
3. Instead of using nested Select loops it is often better to use subqueries.
SELECT * FROM SPFLI
INTO TABLE T_SPFLI
WHERE CITYFROM = 'FRANKFURT'
AND CITYTO = 'NEW YORK'.
SELECT * FROM SFLIGHT AS F
INTO SFLIGHT_WA
FOR ALL ENTRIES IN T_SPFLI
WHERE SEATSOCC < F~SEATSMAX
AND CARRID = T_SPFLI-CARRID
AND CONNID = T_SPFLI-CONNID
AND FLDATE BETWEEN '19990101' AND '19990331'.
ENDSELECT.
The above mentioned code can be even more optimized by using subqueries instead of for all entries.
SELECT * FROM SFLIGHT AS F INTO SFLIGHT_WA
WHERE SEATSOCC < F~SEATSMAX
AND EXISTS ( SELECT * FROM SPFLI
WHERE CARRID = F~CARRID
AND CONNID = F~CONNID
AND CITYFROM = 'FRANKFURT'
AND CITYTO = 'NEW YORK' )
AND FLDATE BETWEEN '19990101' AND '19990331'.
ENDSELECT.
1. Table operations should be done using explicit work areas rather than via header lines.
2. Always try to use binary search instead of linear search. But dont forget to sort your internal table before that.
3. A dynamic key access is slower than a static one, since the key specification must be evaluated at runtime.
4. A binary search using secondary index takes considerably less time.
5. LOOP ... WHERE is faster than LOOP/CHECK because LOOP ... WHERE evaluates the specified condition internally.
6. Modifying selected components using MODIFY itab TRANSPORTING f1 f2.. accelerates the task of updating a line of an internal table.
Point # 2
READ TABLE ITAB INTO WA WITH KEY K = 'X BINARY SEARCH.
IS MUCH FASTER THAN USING
READ TABLE ITAB INTO WA WITH KEY K = 'X'.
If TAB has n entries, linear search runs in O( n ) time, whereas binary search takes only O( log2( n ) ).
Point # 3
READ TABLE ITAB INTO WA WITH KEY K = 'X'. IS FASTER THAN USING
READ TABLE ITAB INTO WA WITH KEY (NAME) = 'X'.
Point # 5
LOOP AT ITAB INTO WA WHERE K = 'X'.
ENDLOOP.
The above code is much faster than using
LOOP AT ITAB INTO WA.
CHECK WA-K = 'X'.
ENDLOOP.
Point # 6
WA-DATE = SY-DATUM.
MODIFY ITAB FROM WA INDEX 1 TRANSPORTING DATE.
The above code is more optimized as compared to
WA-DATE = SY-DATUM.
MODIFY ITAB FROM WA INDEX 1.
7. Accessing the table entries directly in a "LOOP ... ASSIGNING ..." accelerates the task of updating a set of lines of an internal table considerably
8. If collect semantics is required, it is always better to use to COLLECT rather than READ BINARY and then ADD.
9. "APPEND LINES OF itab1 TO itab2" accelerates the task of appending a table to another table considerably as compared to LOOP-APPEND-ENDLOOP.
10. DELETE ADJACENT DUPLICATES accelerates the task of deleting duplicate entries considerably as compared to READ-LOOP-DELETE-ENDLOOP.
11. "DELETE itab FROM ... TO ..." accelerates the task of deleting a sequence of lines considerably as compared to DO -DELETE-ENDDO.
Point # 7
Modifying selected components only makes the program faster as compared to Modifying all lines completely.
e.g,
LOOP AT ITAB ASSIGNING <WA>.
I = SY-TABIX MOD 2.
IF I = 0.
<WA>-FLAG = 'X'.
ENDIF.
ENDLOOP.
The above code works faster as compared to
LOOP AT ITAB INTO WA.
I = SY-TABIX MOD 2.
IF I = 0.
WA-FLAG = 'X'.
MODIFY ITAB FROM WA.
ENDIF.
ENDLOOP.
Point # 8
LOOP AT ITAB1 INTO WA1.
READ TABLE ITAB2 INTO WA2 WITH KEY K = WA1-K BINARY SEARCH.
IF SY-SUBRC = 0.
ADD: WA1-VAL1 TO WA2-VAL1,
WA1-VAL2 TO WA2-VAL2.
MODIFY ITAB2 FROM WA2 INDEX SY-TABIX TRANSPORTING VAL1 VAL2.
ELSE.
INSERT WA1 INTO ITAB2 INDEX SY-TABIX.
ENDIF.
ENDLOOP.
The above code uses BINARY SEARCH for collect semantics. READ BINARY runs in O( log2(n) ) time. The above piece of code can be more optimized by
LOOP AT ITAB1 INTO WA.
COLLECT WA INTO ITAB2.
ENDLOOP.
SORT ITAB2 BY K.
COLLECT, however, uses a hash algorithm and is therefore independent
of the number of entries (i.e. O(1)) .
Point # 9
APPEND LINES OF ITAB1 TO ITAB2.
This is more optimized as compared to
LOOP AT ITAB1 INTO WA.
APPEND WA TO ITAB2.
ENDLOOP.
Point # 10
DELETE ADJACENT DUPLICATES FROM ITAB COMPARING K.
This is much more optimized as compared to
READ TABLE ITAB INDEX 1 INTO PREV_LINE.
LOOP AT ITAB FROM 2 INTO WA.
IF WA = PREV_LINE.
DELETE ITAB.
ELSE.
PREV_LINE = WA.
ENDIF.
ENDLOOP.
Point # 11
DELETE ITAB FROM 450 TO 550.
This is much more optimized as compared to
DO 101 TIMES.
DELETE ITAB INDEX 450.
ENDDO.
12. Copying internal tables by using ITAB2[ ] = ITAB1[ ] as compared to LOOP-APPEND-ENDLOOP.
13. Specify the sort key as restrictively as possible to run the program faster.
Point # 12
ITAB2[] = ITAB1[].
This is much more optimized as compared to
REFRESH ITAB2.
LOOP AT ITAB1 INTO WA.
APPEND WA TO ITAB2.
ENDLOOP.
Point # 13
SORT ITAB BY K. makes the program runs faster as compared to SORT ITAB.
Internal Tables contd
Hashed and Sorted tables
1. For single read access hashed tables are more optimized as compared to sorted tables.
2. For partial sequential access sorted tables are more optimized as compared to hashed tables
Hashed And Sorted Tables
Point # 1
Consider the following example where HTAB is a hashed table and STAB is a sorted table
DO 250 TIMES.
N = 4 * SY-INDEX.
READ TABLE HTAB INTO WA WITH TABLE KEY K = N.
IF SY-SUBRC = 0.
ENDIF.
ENDDO.
This runs faster for single read access as compared to the following same code for sorted table
DO 250 TIMES.
N = 4 * SY-INDEX.
READ TABLE STAB INTO WA WITH TABLE KEY K = N.
IF SY-SUBRC = 0.
ENDIF.
ENDDO.
Point # 2
Similarly for Partial Sequential access the STAB runs faster as compared to HTAB
LOOP AT STAB INTO WA WHERE K = SUBKEY.
ENDLOOP.
This runs faster as compared to
LOOP AT HTAB INTO WA WHERE K = SUBKEY.
ENDLOOP.
<b>Reward if usefull</b> -
What are the main steps to be taken care while doing recording for LSMW
Hi,
I am facing problem in LSMW.
Can anybody suggest me that What are the main steps to be taken care while doing recording for LSMW for recording mm01 ?
thanks'
nareshHi,
Recording in LSMW is similar as SHDB.
in LSMW after you give Project-Subproject and Object.
1)Go to-> Maintain Object Attributes -> double click
2)Press Display/Change Button at top left to make editable mode.
3)Select radiobuton -> Batch Input -> Give Recording name say Z_mm01
4) Click the Recording Overview boton on right -> Give TCode which u want to record....
Rest refer the Document link attached.
Please find the links to various threads on the same.
Re: LSMW - Using a BAPI
BAPI, IDOC in LSMW
Upload the data in LSMW using BAPI
This one is the most complete document for the same
http://sapabap.iespana.es/sapabap/manuales/pdf/lsmw.pdf
http://service.sap.com/lsmw.
Regards
Kiran -
What is the main difference between ws_upload and gui_upload?
Hi All,
What is the main difference between ws_upload and gui_upload?
In what contexts should we use these two function modules??
Thanks,
Creasysearch the forum before posting.
You can find lot of posts related. -
What's the main difference of different Type
I always see Type 3 or Typr 4 jdbc driver. What's the main difference
between them?
RaymondHi,
you can find a description here:
http://java.sun.com/products/jdbc/driverdesc.html
Nils
Raymond Chen wrote:
>
I always see Type 3 or Typr 4 jdbc driver. What's the main difference
between them?
Raymond--
============================
[email protected] -
What is the main reason to upgrade from CS5.5
I havve CS5.5..... I know there is a new upgrade. What are the main, reasons to upgrade??? What is thee most biggest deal. Or should I wait?
Thx.Here's a link to my top ten features in CS6. Only you can judge if it's worth it to upgrade, wait or move to Creative Cloud: http://theindesignguy.com/cs6-thoughts.shtml
You'll find links to Creative Cloud information on that page as well.
Bob -
What are the main tables of SITs?
Hi
What are the main tables of SITs? How can I find out the tables related to SITs?
Regards
RahmanPER_SPECIAL_INFO_TYPES: This table holds the definitions of SITs that are available to each Business Group. Each special information type is a user defined structure for the personal analysis key flexfield. The name of the special information type is the same as the name of the corresponding key flexfield structure.
PER_SPECIAL_INFO_TYPES_V : This table has the Employee's SIT info. A supplementary view used to simplify forms coding
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What is the main difference of Direct update DSO and Write optimized DSO
What is the main difference of Direct update DSO and Write optimized DSO?
Hi chandra:
Check this link.
http://help.sap.com/saphelp_nw04s/helpdata/en/f9/45503c242b4a67e10000000a114084/content.htm
You can find another difference on page 147, section "Reclustering DataStore Objects" of the document "Enterprise Data Warehousing"
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/67efb9bb-0601-0010-f7a2-b582e94bcf8a?quicklink=index&overridelayout=true
>You can only use reclustering for standard DataStore objects and DataStore objects for direct update. You cannot use reclustering for write-optimized DataStore objects. User-defined multidimensional clustering is not available for write-optimized DataStore objects
Regards,
Francisco Milán.
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What are the main differences between iPod Touch 2G and 3G?
I'm thinking about getting one but what are the main differences?
http://discussions.apple.com/click.jspa?searchID=-1&messageID=10241668
among other threads here. Cheers.
Forum Tip: Since you're new here, you've probably not discovered the Search feature available on every Discussions page, but next time, it might save you time (and everyone else from having to answer the same question multiple times) if you search a couple of ways for a topic, both in the relevant forums, in the User Tips Library and in the Apple Knowledge Base before you post a question.
Regards. -
What is the main difference between eewb and aet tool ?
Dear all,
What is the main difference between eewb and aet? Both ways we can create fields and coming to aet is in crm 7.0 and eewb is in 6.0.when we are creating fields through eewb we should have technical knowledge but aet tool is a simple tool as a function people also can easily add the fields. I want to know is there any main difference between both these tools.
Regards,
Jemmi.EEWB works from SAP GUI whereas AET works from WEB UI. AET is developed on top of the EEWB. Most the Objects are supported barring a few through AET. It's a very usefull tool for SAP CRM.
Since in CRM SAP GUI will be phased out soon, AET will be prominent. One will see lot more features in upcoming relase in AET tool.
Regards,
Harshit -
What are the main tables using in vendor performance report.
what are the main tables using in vendor performance report.
how many select statements are in ABAP reports.Refer the links -
vendor performance report !!!
vendor performance report
vendor performance report
I need standard vendor performance report
Regards,
Amit
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What are the main transaction codes in XI?
What are the main transaction codes in XI?
SAP XI TRANSACTION CODES
ALRTCATDEF- Alerts Configuration.
ALRTDISP - Display of Alerts Created
SXMB_IFR -> Start Integration Builder
SXMB_MONI -> Integration Engine - Monitoring
SXI_MONITOR -> XI: Message Monitoring
SXI_CACHE -> To Access IS runtime cache
SXI_SUPPORT -> Test all the Repository and Directory Objects
SXI_CACHE -> XI data directory cacheidx1 -> idoc adapter
IDX2 -> idoc metadata
IDX5 -> monitor idoc adapter
SM21 -> log di sistema
ST22 -> dump abap (analisi di eccezioni)
SMQ1 -> messages inbound e outbound queue
SMQ2 -> messages inbound e outbound queue
SMICM -> J2EE administration
ST06 -> stato della macchina cpu memory filesystem machine status - cpu, memory and file system.
ST03 -> workload.
SCC4 -> visualizza mandanti del sistema
WE20 -> partner profiles
sale - ale settings
RZ10 - edit system profile
SM59 ->mantain rfc destinations
BD64 -> mantain distribution model (trasformazioni)
SU01 -> users
AL08 -> list all logged users(user login logon)
SE10 -> Change Request
SE09 -> Change Request
WE05 -> All idocs
WE19 -> IDoc Test Tool
WE21 -> port definition
SE11 -> Data dictionary
SM21 -> log sistema xi
se37 -> mantain funcion modules
SICF -> http server configuration
SMGW -> trace, alzare livello di trace.
BD13 ->
BD64 -> modelli di distribuzione
PFCG -> Roles
tabella TSTC -> sap transactions codes
tabella TSTCT -> transaction descriptions
STMS -> transports management
SPAM -> apply ABAP support packages
SPAU -> manage objects after apply support packages
SE01 -> manage change requests
SLDCHECK -> Test SLD Connection
SLDAPICUST-> SLD API Customizing
SXMB_ADM -> Integration Engine - Administration
SXMB_MONI_BPE -> Process Engine - Monitoring
SE38 -> ABAP Editor
SE11 -> ABAP Dictionary
ST22 -> ABAP dump analysis
SPROXY-> ABAP Proxy Generation
SE80 -> Object Navigator
ABAPDOCU -> ABAP Documentation and Examples
SE24-> Class Builder
SM21-> Online System Log Analysis
SMQ1-> qRFC Monitor (Outbound Queue)
SMQ2-> qRFC Monitor (Inbound Queue)
RZ70-> SLD Administration
SM58-> Asynchronous RFC Error Log
SM59-> RFC Destinations (Display/Maintain)
SMICM-> ICM Monitor
WE60-> Documentation for IDoc types
BD87-> Status Monitor for ALE Messages
IDX1-> Port Maintenance in IDoc Adapter
IDX2-> Meta Data Overview in IDoc Adapter
WE05-> IDoc Lists
WE02-> Display IDoc
WE19-> Test tool
WE09-> Search for IDocs by Content
WE20-> Partner Profiles
WE21-> Port definition in XI
SE16-> Data Browser
SE93-> Maintain Transaction Codes
SM30-> Call View Maintenance
SU01-> User Maintenance
SM02-> System Messages
BD54 -Logical System Creation.
SWXF_PBUILDER -> for Detail BPM Process
SMQS - > to register the destination in QOUT scheduler
WEOUTQUEUE - > to start the queue processing
SMQR - > to register the queue
IDXPW - > to activate the IDOC message package
IDXP - > to monitor the message packages.
SWF_XI_CUSTOMIZING -> transaction to check prerequisites for integration processes.
http://www.erpgenie.com/abaptips/content/view/452/62/ -
What are the main things to do when optimizing the performance of Java App
what are the main things to do when optimizing the performance of Java App
what are the main things to do when optimizing the performance of Java App
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What are the main tables to refer in ASAP(asap 7.2)?
what are the main tables to refer in ASAP(asap 7.2)?
what are the main tables to refer in ASAP(asap 7.2)?
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What are the main uses for a Macbook Pro, and also for a Macbook Air?
I'm curious of whether I should buy a Macbook Pro, or Macbook Air. Before I make my decision I would like to know what are the main purpaces for each Macbook.
Here's an article that compares the two.
http://news.cnet.com/8301-13579_3-57458148-37/13-inch-macbook-air-vs-13-inch-mac book-pro-which-should-you-buy/?tag=postrtcol;posts -
What are the main differences between 3 three important class types
PP members
What are the main differences between class type 300(variants) , class type 200 (configurable objects) & 001 ( material class)
Please elucidate on the above
Thanks
Suren RHi,
The class type is a central concept in the classification system. The class type determines how classes are processed, and how objects can be classified and retrieved in these classes. In Customizing for Classification, you define the settings for a class type. You define class types for a specific object type, such as materials. You can then use classes of this class type to classify objects of this object type.
When you first create a class, you must enter a class type for the class. Each class type is a closed system. There is no link between the different class types.
he class type determines the following:
Which object types you can assign to a class
Which class maintenance functions you can process
Whether you can classify objects in more than one class
Which class statuses, organizational areas, and text types are supported in class maintenance functions
Whether you can use engineering change management for classification
Which filter functions you can use to restrict the search result
All materials can be classified with class type 001. Class type 300 is for variant configuration the variants under a class item are called as variants and can be picked during sales order creation. Class type 200 is for classes that are used as class items in bills of material. You can classify the same materials separately in these class types.
This is basically used to differentiate the BOM class items.
Prakash
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