Accounting document not posting in production using FIPP

hi all,

I had copied a workflow to post the accounting document. i am using release and post methods in that. i am posting a docuemnt using f-65 .it is working fine in development(the document is getting posted). but in production it is not getting posted. i noticed in the workflow log that the post block is executed succesfully. the binding are similar to that in the development.

I noticed in the output of post method as 'You are not authorized to use Transaction FBVB' .

can any one help how to solve the problem.

Thansk & regards

sreehari p