My client has several brands, and we're putting all our eggs into a single basket (that is, a shared DE at the Parent MID)
With the Shared Data Extension at the Parent level, we run Queries to update each individual child BU mailing Data Extension. We'd like to create a sign-up page for each Child Business Unit that writes to the Shared Parent Data Extension and then triggers a Welcome for that brand.
While I can trigger from the Parent MID, the FROM address and subdomains are for the Parent, and not the child BU. That said, is it possible to trigger a Welcome or a Journey when the subscribe happens? I know I can schedule an Automation to move the data and start the trigger, but I'd like it to be triggered.