Sending IDoc from TIBCO to SAP

Hi,

request is to send IDoc type PURCONTRACT_CREATE01 from TIBCO to SAP.

After sending the data from Tibco there is nothing received in SAP although TIBCO adapter says successfully created.

But no entry in BD87 (IDoc monitor), no entry in SM48 (tRFC queue) on SAP side.

How can I recognize what went wrong - on TIBCO or SAP side?

Shouldn't there be an entry in IDoc monitor at least although content of sender or receiver data or IDoc would be wrong that was sent by TIBCO?

Has the TIBCO adapter to do a kind of commit ?

Help is highly appreciated.

thx.

Achim