Vinted users have been reacting angrily after an update resulted in products showing incorrect sizing.
The popular resale platform has revised its size classifications for women's and children's clothes failing to inform every member regarding the update.
Numerous buyers and vendors are posting online stating that platform listings now display an altered size classification versus the original listing due to the recalibration.
Vinted explained the updated approach better aligns with similar services.
The platform has recommended to check their listings and manually change the size if necessary, which has left users frustrated.
Previously, the measurements included one number and one letter, like S/8 or M/10.
The revised method features a letter and a range for example S/UK 8-10.
With some products, the measurements have been reclassified - such as a large size was previously a 12 but currently displays as UK 16-18.
A fashion influencer, who produces content about larger sizing, explained the modification "makes transactions more difficult".
"Not many brands say XL is a 20-22," which is what Vinted now does.
Stephanie Gallen, located in Scotland, stated items she posted with size 14 tags were appearing on the platform as measurements 20-22.
"Should someone sized 20-22 purchase these they're going to be very disappointed," she explained.
Charlotte Lunn, based in Derby, said she had been left angered due to the update requiring manual adjustment 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 for me since losing part of my income," she explained.
The app has more than 100 million shoppers, including 18 million in the UK.
It has become a favored option versus similar marketplaces including eBay and Depop.
This represents another occasion that an unexpected update to the app has proved unpopular: earlier, the platform withdrew an update regarding delivery choices after backlash from users.
Elara is a tech enthusiast and lifestyle writer with a passion for exploring how innovation shapes everyday experiences and global trends.