myFitment closes on 30 September 2026, and there is no export button.
eBay acquired the myFitment group in 2022 and is now folding the capability into the platform itself. On 30 September 2026 the standalone application and every third-party integration stop. There is no migration tool and no bulk export of your fitment data, which is the part most sellers only discover when they go looking for one.
Three things are getting confused in the seller forums, and separating them makes the decision much easier.
Stays
Fitment already on your listings
Compatibility that has been published to a live listing remains published. Nothing is stripped on 1 October. It is frozen, not deleted.
Stops
Managing that fitment
After the deadline myFitment no longer submits, updates, corrects or monitors anything. Your data stops being maintained the moment the service ends.
Cut off
Amazon and third-party access
Access from outside eBay ends entirely, including Amazon, Rithum and SureDone. Paid subscriptions have already been reduced to zero.
Source
The third-party cut-off was first reported by Value Added Resource on 31 July 2026. eBay has not published a detailed explanation for ending third-party access. Confirm current dates on the myFitment FAQ before acting on anything here.
First question: do you actually need to replace it?
For a large share of sellers the honest answer is no, and it is worth saying that plainly before anything else. eBay Fitment Plus Auto is free, it runs inside the platform, and since October 2025 eBay has been automatically enrolling eligible Parts and Accessories sellers. It checks your covered listings against eBay's own compatibility database on a weekly cycle, and it can both add fitment where you have none and supplement what you already provide.
If your catalogue is mainstream branded parts, you sell only on eBay, and your part numbers are clean, that is a reasonable answer on its own. Take the free thing. You do not need to buy anything on 1 October.
Two groups genuinely do lose something. If you sell on Amazon as well, you lose the ability to submit and correct fitment there, and Amazon expects its own automotive flat file with Part Finder data, which is a different format on a different submission path. GridX Connect publishes into eBay Motors and has no Amazon integration, so we are not the answer to that half of the problem. Providers who work in that format, such as PCFitment, are.
The second group is anyone whose catalogue does not resolve cleanly from a brand and a part number. That is the case covered next, and it is the one worth measuring before the deadline rather than after.
If you list only on eBay and your part numbers are clean, the free tool is probably enough. We would rather say that than sell you something.
Where automatic fitment stops being enough.
eBay's guidance is that a correct Manufacturer Part Number and brand help match your product to valid vehicle data. That inference is good, and it is not the same thing as verified fitment. Four cases break it, and salvage and aftermarket catalogues are full of all four.
Case 01
No manufacturer part number
A used part pulled from a donor vehicle often carries no readable MPN at all. With nothing to match against, there is nothing to infer from, and automatic fitment has no starting point.
Case 02
Reman and aftermarket equivalents
Numbers that resemble an OE number without being one. Close enough to look matchable, different enough to attach the wrong vehicle list.
Case 03
Superseded part numbers
The part is current but the number in the listing is two supersessions old, so the vehicle list attached to it is the old one. See our guide to fitment that fails silently.
Case 04
Differences below trim level
Year, make, model and trim resolve most parts. They do not resolve the ones decided by an option code or a build date, and those are exactly the parts that come back.
There are two separate failures here and they cost you in different ways. A part claimed against more vehicles than it fits drives returns. A part missing vehicles it does fit drives lost visibility. Both are worth measuring, and the fix for each is different.
There is no export, so your live listings are the record.
This is the practical consequence of no migration tool, and it is less alarming than it sounds. Compatibility already applied to your listings is still there and still readable, which means it can be pulled and rebuilt from the listings themselves rather than from myFitment.
What comes back cleanly: the part number, the brand, the category, and the published compatibility list. What does not come back is the reasoning behind any of it, meaning whether a given vehicle was verified, inferred, or added automatically. That distinction is the thing actually worth rebuilding, because it is what separates a vehicle list you can trust from one you are hoping is right.
One useful sanity check while you are in there. A single listing can carry up to 1,000 or 3,000 year, make, model, trim and engine combinations depending on category. For a common wear part that ceiling is real, and hitting it usually means the data is over-applied rather than comprehensive.
Related reading
For the responsibility question, specifically who absorbs the cost when eBay wrote the compatibility and the buyer says it did not fit, our parent company covers it in depth in who controls your eBay fitment. The short version: eBay Guaranteed Fit provides a free return label on most parts, but not in the Wheels, Tyres and Parts category, and not on freight or cross-border returns, which are the expensive ones.
A checklist for the days you have left.
For a catalogue in the low thousands of SKUs this is days of work, not weeks, and none of it requires ending or relisting anything.
01
Pull your compatibility out of your live listings now
- Export your active listings with their published compatibility while the data is still attached and readable.
- Keep the part number, brand and category alongside each vehicle list. Those are what make the list rebuildable.
- Do this before the deadline. Nothing is deleted on 1 October, but you want the snapshot taken while the service that produced it still exists.
02
Decide, honestly, which bucket you are in
- eBay only, mainstream branded parts, clean part numbers: Fitment Plus Auto is likely sufficient. Do nothing and keep the money.
- Selling on Amazon as well: you need a provider working in the Amazon automotive flat file format. That is not us.
- Used, salvage, reman or aftermarket stock without reliable part numbers: automatic inference will not cover you, and this is worth solving properly.
03
Check your enrolment status before you change anything
- Enrolment in Fitment Plus Auto is automatic for eligible sellers, and the notification arrives after the fact.
- Opting out is in Motors Selling Preferences, but it removes the fitment that Fitment Plus Auto added. If it has been running a while, that may be more of your coverage than you expect.
- You can opt back in later and your listings become eligible again, so this is reversible. Just do not opt out casually before checking what it is currently carrying.
04
Measure over-application, not just coverage
- Coverage tells you how many listings have a vehicle list. It does not tell you whether that list is correct.
- Count the listings claiming vehicles the part does not fit. Multiply by what a return actually costs you, including the part coming back in unknown condition.
- That number is your answer on whether any of this is worth paying to fix.
Where GridX Connect fits, and where it does not.
We publish into eBay Motors. If your problem is Amazon fitment, we are the wrong tool and PCFitment is a better place to look. If your problem is that a catalogue of used and aftermarket parts does not resolve from part numbers alone, that is the case we are built for.
Fitment is matched against a graph of verified vehicle-to-part relationships rather than inferred from a brand and a number, which is what makes the four failure cases above tractable. Existing live listings can have fitment rebuilt onto them without relisting, through FitX, so a myFitment catalogue does not have to be rebuilt from scratch.
Matched, not inferred
Vehicle-to-part relationships behind every compatibility list, rather than an inference from brand and part number.
The rest stays yours
The remaining 2% surface as editing tasks, so the exceptions are visible instead of silently wrong.
Rebuilt in place
Fitment is added to existing live listings without ending or recreating them.
Caveat
eBay's programme rules, category exclusions, enrolment defaults and compatibility limits are eBay's own mechanics and change over time. Confirm the current position in your own Seller Hub and Motors Selling Preferences before making a decision based on this article.
Rebuild fitment before the deadline.
Verified compatibility on your existing eBay listings, without relisting anything. First fifty SKUs free, no credit card.