SAP Message VVSCDI020 - Rollback must be executed by caller

Diagnosis
An error occurred when calling up the ISCD_SCPOS_MAINTAIN functionmodule. As the I_ERROR_ROLLBACK parameter was filled with space,no Rollback was executed.

Procedure
Implement a Rollback if errors occur. You can find information aboutthis in the E_ERROR_INFO parameter.
Please note that the Rollback does not undo parts of the processingstep, if these have already been written to the database as a result ofthe I_COMMIT_BETW = X parameter.