How To Fix V2421 - The system could not create/change any correction deadlines for item &1

SAP Error Message - Details

• Message type: E = Error

• Message class: V2 - Kopierfunktionen der Verkaufsbelegbearbeitung

• Message number: 421

• Message text: The system could not create/change any correction deadlines for item &1

What causes this issue?

The system could not create or change any correction deadlines because
billed correction deadlines already exist.

How to fix this error?

You can only create correction deadlines for a billing plan with no
other correction deadlines. If the billing plan is linked to the header
billing plan, there shouldn't be any correction deadlines in the header
plan either (billing status B or C).

Error message extract from SAP system. Copyright SAP SE.