Error OKC-195787 When Amending Contract Party Name

During contract amendment in Oracle Fusion Contracts, an error is encountered when updating the party name to a new supplier (e.g., “Daal”). The system returns: “You must enter a valid value for signature role attribute (OKC-195787)”

This occurs during the save or submit action. The issue appears to be related to missing or invalid signature role configuration for the newly added party.

Could you please advise:

• How to properly configure signature roles for new suppliers?
• Where to check or assign valid signature roles in the contract setup?
• Whether this needs Terms Library or Supplier Contact updates?

Any documentation or steps to resolve this would be appreciated.