I've read a few instructions online but it seems they are no longer valid (like creating a file and redirecting). It seems like Shopify has a default and empty AASA file to return. I don't see any official articles about this. I've found a handful of discussions where Shopify customers are/were struggling to get this going. I've tried reaching out to the support team but they don't know anything about AASA. Is there anyone that can point me to the right direction?