put
https://api.ecartapi.com/api/v2/packages/
Use this resource to update the status of your packages from ON_HOLD to OPEN. Note: If your package is in ON_HOLD instead of OPEN, it means that fulfillment creation has been paused due to some logic in your Shopify store. This condition varies by store and can be triggered by factors such as insufficient inventory, products not yet available, order risk, or pending payment.