Diagnosis
You want to delete executed initializations, registered in the deltaadministration, from the delta administration.
If you delete initializations from the delta administration, only thedelta administration in BI and in the source system is reset. You canthen only request deltas again when you have reinitialized thisDataSource/source system combination.

Warning
When you delete the initialization from the delta administration, nodata is deleted from the system.

Important Note on DataStore Objects
If the delta process of your DataSource stipulates serialization, youcan no longer post this init request or any subsequently requested deltarequests to the DataStore objects that were filled previously, after youhave deleted the initialization and reinitialized. This is because oldinits and deltas still exist.
The DataStore object recognizes that new inits and deltas have beencreated that are not yet posted in the DataStore object and requiresthem to be updated. Otherwise the selections of the new inits overlapwith the selections of the old inits that are still in the DataStoreobject, so that they cannot be posted.

System Response
The system does not activate the newly-loaded inits or deltas in theDataStore object if the delta process of the DataSource stipulatesserialization.

Procedure
After deleting the init administration, also delete the data that wasloaded with this init and the deltas that followed into the DataSourceobjects from these DataSource objects, if the delta process of theDataSource stipulates serialization.
Otherwise new inits or deltas cannot be activated in this DataStoreobject.
(This is not checked when the inits or deltas are loaded to theactivation queue, but when they are activated).