Metadata EDISDEF not maintained - Idoc adapter error

hi,

In our scenario, SenderParty->XI->R/3, we are using custom idoc to post into R/3. The idoc adapter throws an error, Metadata EDISDEF for port SAPXXX, IDoc type ZKAGXXX and CIM type not maintained, but when i use standard idoc, i don't get this error. We even applied oss note 837595 to fix authorization issue, but it didn't help.

Any ideas or suggestions.

Thanks

Pandari