How To Fix WS770 - Settlement relevance may not be restricted on one side

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 770

• Message text: Settlement relevance may not be restricted on one side

What causes this issue?

At item level, the settlement relevance can only be excluded for the
partners that are also settled at item level.
Example:
Supplier settlement at header level and customer settlement at item
level.
Then only either "Standard (both)" or "Supplier only" can be set as
settlement-relevant.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.