The instruction & is not defined.
Message type: E = Error
Message class: V4 - Nachrichten Verkauf (Variable Meldungen und EDI-Meldungen)
Message number: 157
Message text: The instruction & is not defined.
System Response
The system rejects your entry, or does not allow you to maintain
forecast, just-in-time (JIT), or planning delivery schedules for this
sales scheduling agreement item.
How to fix this error?
Enter a valid instruction or remove the invalid instruction from the
item.
Error message extract from SAP system. Copyright SAP SE.