This solution is not correct and in fact is now a deprecated API call.There are too many strange ways to update sets of InventoryItems (when you have an InventoryItem ID and a quantity) I'm guessing this is the supported one for the future for settin...

Use the app Matrixify (formerly known as Excelify) or Bite the bullet and write a little app to do it yourself over GraphQL. If you're going to be working with Shopify in your job, you should get used to doing this kind of task yourself, it's very ed...

This is simply how Flow works. Shopify Flow will execute against new orders soon after they are created, subscribed webhooks will probably be sent out before this happens with Shopify Flow. You just have to understand that and work with it. It is cer...