We have successfully set up a data action and custom substitutions for inbound emails using an inbound email flow. We need the same functionality for outbound emails. In other words, if we initiate an email to a customer, we'd like to use custom substitutions for populating their phone number, name and other info that we might have by accessing an api endpoint.
Is there anyway to get that data and substitute it in a canned response, since there are no outbound email flows in Architect? Is there another way to do this?