Hi MFH,
It looks like you have gateway security activated in your ECC system. Therefore the registration of the pgm is unsuccessful.
1) Access the transaction SMGW, menu Goto -> expert functions ->
external security -> reload;
2) De-register all the registrations of the involved program (in case
it's registered more than once);
3) Re-register the program.
The steps 2 and 3 are necessary because the already registered programs
will continue to use the old rules, and there is no way to refresh this
information besides de-registering/re-registering the program.
Note 63347 - List: CPIC error codes
Note 1592493 - GW: Problems during reginfo configuration
Kind regards,
Mark