Hi Bhat,
When COPA Realignment happens in source Delta fails in BW with error "Delta Update is no longer possible due to Realignment in Source System".
Some steps to be taken to overcome the issue:
1. Check table TKEBWL - CO-PA connection to SAP BW : Infosources contains a flag called 'FLAG_DIRTY' - Without Consistensy Check. By default this flag not set (empty) for COPA Datasources.
2. In order to ensure Delta records continue, this flag needs to be set. This flag cannot be set manually in the source system. A Program is needed to set this Flag for COPA DataSource.
Program:
REPORT COPA_FLAGSET
TABLES: TKEBWL.
UPDATE TKEBWL SET flag_dirty = 'X'.
MESSAGE I000 (ZCO_COPA)
3. Once you run this program , and the DIRTY_FLAG indicator is set the Delta would start. These records will contain all deltas since last successful delta loadm So even those delta records which are missed due to delta failures would come in.
Hope this helps you for sure...
Thanks,
Srinivas