You need to have a Message Bank Operation to send messages to the Message Bank and you need a Message Bank Production with a TCP Service to receive the messages.
I have written an article about my experience with Message Bank and I have a GitHub repo with Message Bank code:
Hi Muhammad,
You need to have a Message Bank Operation to send messages to the Message Bank and you need a Message Bank Production with a TCP Service to receive the messages.
I have written an article about my experience with Message Bank and I have a GitHub repo with Message Bank code:
IRIS Interoperability Message Bank | InterSystems Developer Community | AWS