SAP Message 6D278 - Settlement unit &1 was already settled with settlement &2

Diagnosis
You want to change settlement unit &v1& from status "settled" to status"released". However this settlement unit has already been settled insettlement &v2&. You should therefore use the "Reverse service chargesettlement" function as other tables are also updated in thesettlement.
You can only release settlement units with this report program thatwere wrongly set to "settled" with a help report.