When customizing the MFAXML member, Micro Focus strongly recommends copying it to HLQ.CUSTOM.CNTL before modifying it. You need to change the template JCL that is supplied with the product (MFA, MFAAS, and MFAAMS) and modify the CONFXML DD statement to point to the new location. More information can be found in the customization topic for each of these members.
The MFAXML member in the CNTL data set contains the Mainframe Access Server initialization parameters referenced by the Mainframe Access started task JCL and Mainframe Access Application Server started task JCL.
Modify TCP_PORT="2020" to TCP_PORT="clientport". This is the port number that Micro Focus client software is configured to use.
Modify NETWORK_ID="DDINET1" to NETWORK_ID="netid", the VTAM SNA network id of your system.