we are developing an integration app for warehouses to be connected to Shopify stores.
We are using Fulfilment orders to send orders to warehouse that are to be processed.
At the moment we are struggling to find a way to process Returns that are received by warehouse. There are usually 2 steps in the Return flow that we are working:
1. Return in progress - return is received by warehouse but still has to be checked and approved.
2. Return is accepted.
How can we send back this statuses to Shopify store?
Thank you very much beforehand for your input!