Generating a process with the EDA (For EDA Event Triggered Processes) protocol is very similar to generating a JMS triggered process. By default, the EDA (deprecated) protocol uses the EventBus Connection Alias.

When Designer generates a process that uses an EDA (deprecated) trigger, the current configuration specified in the Properties view is used. This means that if you have edited the trigger and subsequently edit the JMS Properties on the Implementation page in the Properties view (connection alias and destination name), your previous trigger edits for these fields are overwritten. This is true for initial generation and subsequent regenerations.