SAP Message UDM_MSG037 - Process step &1: Change not possible, process step &2 missing

Diagnosis
The dispute case is to be changed by process step &V1(Z)& fromaccounting. However, there is at least one process (for example,clearing transaction from payment or credit memo) that was performedbefore the current step and that has not yet updated the dispute case.The changes to the dispute case must be carried out in the correctorder.

System Response
The dispute case could not be changed.

Procedure
In an asynchronous change to dispute cases using IDoc, make sure thatall IDocs of the previous process have been posted. Then you cancarry out the required action (for example, postthe current IDoc from process step &V1(Z)& or include further items).The immediate previousprocess step is &V2(Z)&.