The fields in a sales order can be made optional / mandatory by following this menu path – IMG – S&D-> Basic > Functions-> Log of incomplete Procedures =>  select the fields > from the tables and the system will check for them (OVA2/VUA2) To make a filed entry enabled or grey (non-entry allowed): User exits in [...]

Need to find user exits module-wise? Suppose we want to see the available sales module user exits. Go to transaction SE81. Click on SD, then click “edit” on the menu bar and choose select subtree. Click on “information system,” Open Environment node, customer exits, and enhancements. Press F8 to get all the user exits for [...]

USEREXIT_SAVE_DOCUMENT_PREPARE