I am trying to figure out how to map data from our Broker in order to post the Tax Statement IDoc to GTS. Off the bat, this is not supported as standard for the country in question. So, I tried to configure based on existing configuration ( not much in regards to the Tax Statement).
Anyway, when I use the IDoc simulator (/SAPSLL/ITT_IDOC_SIM) for the test document, I do not have the choice of the Tax Statement under the Possible Inbound Messages. I am not sure why? Doe the processing the Tax Statment need to be configured as a separate Activity instead of a message under the Interface activity?
Please let me know if you need additional information.