When we download the label and packing slip in ZPL format, there is always an issue with the packing slip, as it contains duplicate items, how to solve the problem?
Thanks for being a part of our community and for reaching out. Given the issue you are experiencing I would recommend reaching out to our support team directly to create a support ticket. Other community members would most likely be unable to assist in this situation.
-Erin: Your Friendly ShipStation Community Manager
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