If your Etsy store is integrated with an Inkthreadable account you won't need to do anything to set up gift messages being sent with your orders!
When your customers check out they will have the option to add a gift message to their order. If they do, this gift message will be attached to the order when it's pulled through to your Inkthreadable account and will be included on the packing slip that's shipped with the parcel.
Please note: if a gift message is included on a packing slip the resale price is not shown by default.
What if my customer wants to add or edit a gift message after the order has been placed?
You can manually add or edit a gift message for an order at any time. You can find out how to do this here.