We have a very simple workflow, when we get an order from a specific channel we change the e-mail address. We do this so that carrier tracking updates don’t get sent to those e-mails because that breaches the channel’s TOS. However the shipping app seems to get the orders first and passes on the e-mails to carriers anyway. Am I doing something wrong?
If you are updating the email address when an order is created, then it’s possible that your shipping app is also running at that same time. That is a question for them. I’m recommend asking them if there is a way to change the timing of their sync. Often, this happens because you request fulfillment automatically.