Message retrieval in IS after changes on the document


we have an Integration Server (Reader-IS) trigger that retrieves documents from a UM channel. The documents are published to the channel by another IS (Publisher-IS).

Assume we perform the following actions:

  1. Stop the trigger (suspend retrieval and processing)

  2. Publisher-IS publishes some documents. These are buffered in the UM since the trigger is suspended.

  3. Change the document definition on the Reader-IS: add an optional field to it.

  4. Synchronize Reader-IS with UM. Question: Do the buffered messages get lost?

  5. Activate the trigger in the Reader-IS. Question: Will the documents get retrieved without problems? I.e. all the fields should be correctly read out, just the newly added field should remain empty (no value present).

Thank you for your thoughts.