TXJobException:[TxMgr] Duplicate request

I have a webMethods 4.01 SP3 B2B Server running Java Our client has a 4.6 Integration Server. They are connecting to using a multi-threaded remote service call.

When they connect try to our Guarenteed Delivery Engine. This is the exception throw to the server error log.

“com.wm.app.b2b.util.tx.TXJobException:[TxMgr] Duplicate request”

Is this documented anywhere? I think the GD engine is being told to use the same tid to activate another thread.

Any help is a plus. Thanks

Hi we are getting this message very frequently

com.wm.app.b2b.util.tx.TXJobException: [B2BCORE.0063.9116] [TxMgr] Duplicate request

Could somebody explain what this could be