How To Fix WAB066 - Not all items of source document &1 were cancelled

SAP Error Message - Details

• Message type: E = Error

• Message class: WAB - Messages Settlement Management

• Message number: 066

• Message text: Not all items of source document &1 were cancelled

What causes this issue?

The customer settlement, supplier settlement, or collective document was
created on header level.
You must cancel either all or none of the items of the original
document.

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.