Hi Chandu/Surya,
I think the best way to avoid the error is to plan the jobs when there is no posting. The error message KE719 arises when records are currently being posted in the operating concern. While processing the summarization level the actual records are recorded. When the system rebuild or update a
summarization level it is necessary to have a unique timestamp to determine if a line item with a timestamp is already added to the sum level or not. Therefore SAP sets a lock whenever you post a new line item, get the timestamp and release the lock. Therefore system make sure that it get a unique timestamp of a set of line items.
When you start an update or rebuild of the sum level you also need an unique timestamp and use therefore the same lock. This is part of standard system behavior (SAP note 903483).
Modification is required if you wish to change system behavior.
Best regards, Gordon