EQAPS3019E The request could not complete because the CICS region is not defined in the dtcn.port configuration file

Explanation

CICS region set up with TCPIPSERVICE:

Debug Profile Service API acts as a client, routing HTTP requests to the DTCN API running on the target CICS region. It uses the dtcn.port configuration file to identify the target CICS region and obtain the port number pair required by TCPIPSERVICE.

CICS region set up with EXCI:

Debug Profile Service API interfaces directly with the CICS DTCN Repository Manager to manage debug profile running on the target CICS region, bypassing the DTCN API altogether. It references the dtcn.port configuration file to identify the target CICS region and uses a port number of -1, indicating that the Debug Profile Service API should connect using CICS EXCI.