How does table SMW3_BDOC become very big?

Hi,
The table SMW3_BDOC which store BDocs in my system becomes very big with several million records. Some BDocs in this table are sent several month ago. I'm very strange that why those BDocs were not processed?
If I want to clean this table, will inconsistancy occurrs in system? And how can I clean this table for those very old BDocs?
Thanks a lot for your help!

Hi Long,
I have faced the same issue recently on our Production system and this created a huge performance issue and completely blocked the system with TimeOut errors.
I was able to clean up the same by running the report SMO8_FLOW_REORG in SE38.
If you are very sure about cleaning up, first delete all the unnecessary Bdocs and then run this report.
At the same time, check any CSA* queue is stuck in CRM inbound queue SMQ2. If yes, select it, manually unlock it, activate and then refresh. Also check any unnecessary queues stuck up there.
Hope this could help you.
regards,
kalyan

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