BADI IBSSI_SEND_TO_UPL not getting triggerred

Hi ,

The BADI IBSSI_SEND_TO_UPL is not getting triggerred when saving the changes for old BP but is getting triggerred when saving the changes for a new BP , this BADI is used to replicate data from CRM to ISU .

Please suggest .

Thanks  ,

Vaibhav