I am calling the abort.io function. The function has a string parameter that states is a message code from the data dictionary. I assume this means the message code from the message session. This does not work and I can't get a valid message to display just a bunch of question marks. What code should I be using from which session to get a valid message returned.

Thanks for any help.

Are you using the correct message code? Can you post your script please?

Remember that you need to add the package code of the message, and also that you should (conventionally) use message codes of the same package as the script in which you are using it.
Another point to check would be the VRC in which the message code exists - if this is not part of the derivation structure, the script will not be able to find the message.

Thanks, The problem is solved and was due to me not adding the package code in front of the message code. I should of got this.

Thanks for all the help!!!