SAP Message WP203 - Port definition & not available

Diagnosis
The port definition has not been maintained.

System Response
The upload IDOC could not be generated from the download IDOC.

Procedure
You have the following options:
- You can create the upload document manually.
Proceed: Inbound IDOC
- You can create a reference to an existing port in the outboundparameters of the partner profile of the store.
Proceed: Partner profiles
- You can maintain the missing port.
Proceed: Port definition
If you do not wish to do this or you do not have the necessaryauthorization, contact your system administrator.