I have exactly the same problem too. It has been working ok the past few years but this last week or so it doesn’t work any more. I don’t know if its their latest updates that have messed it up.
I go to select the product to exchange and Shopify can’t find it. In fact, whatever I enter, Shopify can’t find it.
But Shopify can find everything okay through the normal order checkout.
It seems not to work on the exchange product search dialogue only.
I have tried all of Shopify’s suggestions but nothing working.
iPad software updated, logged out, logged in, restarted …everything. It’s driving us crazy.
Has anyone found any solution?
Thanks.