PR not transferred to EBP from R/3 in PDP scenario

Hi All,,

I am facing the strange issue when i do the PDP Scenario in our business. Already the standard settings are well done for replicating the PR from R/3 to EBP and its working fine. But at recent cases some of the PR's are not getting transferred the EBP and getting struck in the queue SMQ1.Issues like..,

1. PR's are getting transferred regularly with correct data's and at some point 1 or 2 PR's getting failed which also have the same data which looks very strange and we couldn't find any differnce.

The error is "Application aborted because of serious problems" program "BBP_EXTREQ_TRANSFER"

Kindly suggest to aviod this serious issue.

Regards,

Kannan B