I have maintained an alternate document type ZMMF in OR10 Sales Order. In Sales order it is showing both options i.e. ZMMF and OR10. But when I am going to change this, system is prompting an error as below:
Changes to sales document type are not possible (item category of item 000010)
Message no. V1847
You cannot enter any values for the item category for item 000010. This means that you cannot change the sales document type.
Change the sales document type back to the previous value.
I request you to pls help me in sorting out this issue.
Regards Krishan Raheja