Shopify Flow: Receive an email when return label is scanned at post office?

For returns where we either purchase a label through Shopify or upload the label number into Shopify - is it possible to be notified when the shipping label has been scanned at USPS/UPS etc? I know that Shopify tracks the original order step by step, but is this true for returns?

If they do track, I’m thinking the flow is something like Start when a refund is created, check if label has been scanned (how?!?!), if yes, notify us via email, if no, wait a day, then go back to check if label has been scanned step.

Also, is it possible to have the “otherwise” portion connect back to a previous step in the flow? If not, is there a workaround to this?

Why we want this flow: For exchanges, we want to send the new product out right away but don’t want to do it until the customer has mailed the exchanged item to us (sometimes they decide to keep it).

Not sure if it would be possible to do this in flow, since they don’t have a trigger for order updated, which is what I believe you’d need to use here.

It may be possible to do this using our automation app mesa. I’d be happy to do some free investigation of the API calls and webhooks related to this if you wanted to give me access to your shopify site.

This is something that’s hard to test in my test store because of course scanning labels isn’t something I can easily do, so I’d be interested to see how this works in the API for a store that’s already dealing with those return labels.