MCAUserSource (MQLONG)
This field specifies the source of the provided MCA user ID.
It can contain one of the following values:
- MQUSRC_MAP
- The user ID is specified in the MCAUSER attribute.
- MQUSRC_CHANNEL
- The user ID is flowed from the inbound partner or specified in the MCAUSER field defined in the channel object.
This is an input field to the exit. The field is not present if Version is less than MQCXP_VERSION_8.