Restricting changes to G/L account in PO
Scenario:
We had a requirement of restricting the end user to change the G/L account number in PO. The proposed G/L account number should only be considered.
Solution:
To achieve the above requirement, do the following customization settings:
Go to transaction SPRO à MM à Purchasing à Account assignment à Maintain account assignment category.
Following screen appears:
Now select the corresponding Account Assignment category. In our case, it is ‘F’. Double-click on this category.
Now do the page down on the Fields to find out G/L account.
Now Change the G/L account to Display and click on Save.
Now when you create/change the PO for the account category F, the G/L account would be shown in display mode as shown below:

Restricting changes to G/L account in PO