SAP Message R8278 - Delta method does not support extraction from different clients

Diagnosis
The delta method does not support extraction from different clients.

Procedure
In the current release, you can extract data from one clientconsistently using the delta method for the generic extractor. Refer tothe SAP Note 536469.
Delete all DeltaInits from this system apart from those in one, specificclient. Only then can you request data in the detla mode.