Shoppers are voicing their frustration following a change that caused items being listed as the wrong size.
The second-hand shopping app has altered its measurement guidelines for female and kids' apparel without notifying every member regarding the update.
Numerous buyers and vendors are expressing on platforms saying Vinted listings now show a modified sizing category than originally posted because of the remapping.
Vinted explained the revised method more closely matches comparable marketplaces.
They have suggested members to check their listings and manually change the size where appropriate, resulting in member annoyance.
Before the change, the measurements included one number and one letter, such as S/8 or M/10.
The new system has a letter and a range like S/UK 8-10.
For certain items, the size labels have been reassigned - such as a large size was previously a 12 but currently displays as UK 16-18.
Frankie Bridger, who creates plus-size fashion videos, explained the modification "makes transactions more difficult".
"Rarely do manufacturers list XL as sizes 20-22," as the platform currently indicates.
Stephanie Gallen, based in Glasgow, said garments she listed with size 14 tags were showing in the marketplace as size 20–22.
"Should someone sized 20-22 purchase these they will likely be quite upset," she explained.
A different user, based in Derby, stated she felt frustrated due to the update requiring manual adjustment the sizing for "all her products".
"Personally, this is quite irritating, because of my ongoing medical condition and platform income has been essential after experiencing income reduction," she stated.
The app has more than 100 million users, including 18 million in the UK.
It has become a favored option to second-hand platforms like eBay and Depop.
This represents another occasion where an unanticipated change to the app has proved unpopular: last year, Vinted reversed a change to its shipping options after backlash from users.
A seasoned sports analyst and casino reviewer with over a decade of experience in the Canadian gambling industry.