How To Fix W_CB121 - Item number &1 was assigned twice in one document

SAP Error Message - Details

• Message type: E = Error

• Message class: W_CB -

• Message number: 121

• Message text: Item number &1 was assigned twice in one document

What causes this issue?

When creating a chargeback request, numbers that must be unique within a
document are assigned for the items. Item number &V1& was assigned twice
for one document.

System Response

The document cannot be created as the item number is not unique.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.