Shoppers are voicing their frustration after an update resulted in products showing incorrect sizing.
The popular resale platform has revised its sizing categories for women's and children's clothes but did not contact all shoppers about the modification.
Digital Channels Response
Many shoppers and sellers are posting online saying Vinted listings now show a different size category compared to what was initially listed due to the recalibration.
The company said the new system was more in line with similar services.
It has advised users to examine their items and manually change the size where appropriate, which has left users frustrated.
Size Classification Changes
Earlier, the sizing featured a single numeric size and a letter, like S/8 or M/10.
The new system has an alphabetical indicator and numerical range like S/UK 8-10.
For certain items, the size labels have been reassigned - like an L measurement used to be a 12 but is now a UK 16-18.
Shopper Stories
One content creator, who creates plus-size fashion videos, explained the modification "makes transactions more difficult".
"Few clothing companies classify XL as 20-22," the way the service now categorizes.
Another user, located in Scotland, said garments she listed featuring size 14 markings were appearing on the platform as size 20–22.
"If buyers measuring 20-22 acquire them they may become frustrated," she explained.
Manual Updates
A different user, based in Derby, said she had been left angered by the change as she had to manually change the measurements for "each individual item".
"This situation is especially annoying, as I'm chronically ill and Vinted sales have been crucial following partial earnings loss," she explained.
Marketplace Information
The app has more than 100 million members, including 18 million in the UK.
It has become a favored option versus similar marketplaces including eBay and Depop.
This is not the initial instance that an unexpected update on the platform has faced criticism: last year, the platform withdrew an update regarding delivery choices due to shopper criticism.