Currently, if a tracking number is missing from a fulfilled order, there is no way to add it in the admin. Shopify Support also cannot do it. This caused me to create a duplicate order (#1017) just to try to add a tracking number to the origin
al order (#1016), creating unnecessary confusion. Please add this feature! 
this one is more fixable than support makes it sound. the admin UI hides the option once a fulfillment already exists without tracking, but the Admin API can update tracking on an existing fulfillment directly (there’s a fulfillment tracking info update mutation in GraphQL that does exactly this). if you have a dev or are okay running one API call, it writes the tracking onto the original fulfillment and you avoid the duplicate-order mess entirely. did support actually try the API route, or only the admin screen? front-line usually only checks the UI and stops there.
Hello there @Jutjui_Krajan
I think this would be a great improvement. As a workaround you can send the tracking number manually to the customer via email, and also add it as an internal note to the order so you have a record of it. When the goods in the order are already shipped, you may archive the duplicate order and keep the original as the source of truth. It’s not quite as clean as just editing fulfillment tracking, but it should prevent any more confusion, and keep accurate order history.
Hi @Jutjui_Krajan .
Completely valid frustration, and this is a gap that should not exist in a platform like Shopify.
Post this on the Shopify Community Feature Request board and ask others to upvote it. This is exactly the kind of practical daily workflow issue that gets attention when enough merchants back it.
In the meantime, if you ever need to add a missing tracking number, you can try editing the fulfillment directly through the Shopify API if you have developer access or use an app like Tracktor or AfterShip, which allows adding tracking numbers to existing fulfillments.
Hope Shopify fixes this properly soon!
Jumping in on this older post because I’m curious if anyone’s found any new workarounds for adding tracking numbers to already fulfilled orders. Have there been any updates or new apps that make this process smoother? It sounds like more of us could benefit from a built-in feature for this. Would love to hear if anyone’s managed to tackle this problem recently!
