Vinted users have been reacting angrily due to a modification that led to items being listed as the wrong size.
The second-hand shopping app has updated its measurement guidelines for women's and children's clothes but did not contact all users about the change.
Online Platforms Reaction
Many shoppers and sellers are posting online saying Vinted listings now show a modified sizing category than originally posted because of the remapping.
The platform stated the revised method more closely matches comparable marketplaces.
It has advised users to review their products and adjust the sizing manually where appropriate, causing user dissatisfaction.
Measurement Approach Changes
Earlier, the sizing featured a single numeric size and a letter, such as S/8 or M/10.
The new system has a letter with a size spectrum for example S/UK 8-10.
In some cases, the sizing has been recategorised - such as a large size used to be a 12 but is now a UK 16-18.
User Experiences
Frankie Bridger, who produces content about larger sizing, said the change "makes both selling and buying harder".
"Rarely do manufacturers list XL as sizes 20-22," the way the service now categorizes.
Another user, based in Glasgow, explained products she uploaded on Vinted with size 14 labels were displaying on the service as larger sizing 20-22.
"Should someone sized 20-22 purchase these they're going to be very disappointed," she explained.
Manual Updates
A different user, based in Derby, stated she felt frustrated by the change as she had to manually change the measurements for "each individual item".
"For me this is particularly frustrating, since I have chronic health issues and selling on Vinted has been paramount following partial earnings loss," she stated.
Service Background
The app has more than 100 million shoppers, comprising 18 million UK members.
It has emerged as a preferred choice to second-hand platforms like eBay and Depop.
This is not the initial instance when a surprising modification to the app has proved unpopular: earlier, the service retracted a modification concerning shipment methods after backlash from users.
