If your application is deployed on another AS/400, and if it uses program calls or Data Queues I/O, you need to port the descriptions from your development system to the deployment one.
Descriptions are stored in files YPROCHDR and YPROCPARMS in
Easycom Library (by default).
Library where YPROCHDR and YPROCPARMS might have been changed with the "RPC-DTAQ configuration " utility.
You can copy those two files from the development system to the deployment.
Or you can use the "RPC-DTAQ configuration " utility to save descriptions and restore them on the target system.