That really isn’t how it works.

AS explains how to request retro-credit: https://www.alaskaair.com/content/mi...request-credit

It’s basically the same with any program I have ever looked at: you request the retro-credit from the airline program you want to credit to, and they verify with the partner airline that you are credit due, post it, and then get paid eventually by the partner airline.

OP, in my experience retro credit requests submitted to AS often go into a black hole. The partner doesn’t respond and AS appears to have no mechanism to revisit the pending request. It’s best to follow up with a phone call after eight weeks. Often they can then post the missing miles right away with supervisor permission.