Find obligatory fields in the transaction MM01

Question

Hi,
My requirement is to create a Z table which will store all mandatory fields from the transaction MM01.
Is there a way to know which fields are mandatory without being in the transaction MM01 or OMS9? In which system table is this information saved?
Regards,
Roberto

Answer 1

Hi,
For writing a substitution exit code you will need the help of your ABAPer.
Use T Code GGB1 to create a substitution. In the application Area select Financial Accounting --> Line item.
Create a substitution for your company code. Under Substitution Create Step. When you click on step it will give you a list of fields in BSEG table. Select field name XREF1 or XREF2 or XREF3 any one. In the next screen select "Exit". In the Prerequisites give conditions as BKPF-BUKRS = 1000 (your company code).
In the Substitution select your exit code against  your XREF1 or XREF2 or XREF3 field.
While writing the exit code you can give the logic as select BSEG-KUNNR and pass to table KNA1. Then populate BSEG-XREF1 with KNA1-NAME1
Save this substitution and activate it in T Code "OBBH"
While writing Substitution exit copy the standard program "RGGBS000" and create your Z program. Write your new code in the Z program. This step should be done before you create a substitution. Use T Code GCX2 and maintain your Z program against Application Area "GBLS".
Also see to it that the Reference Key1 / 2 / 3 field is made optional in all the Posting Keys and Field Status Groups.
Please let me know whether this helps.
Regards,
Swapnil