Shoppers are voicing their frustration following a change that caused listings displaying inaccurate size information.
The popular resale platform has revised its sizing categories for women's and children's clothes but did not contact all users about the change.
Digital Channels Backlash
Numerous buyers and vendors are posting online stating that platform listings now display a different size category compared to what was initially listed as a result of the reclassification.
Vinted explained the revised method more closely matches other platforms.
It has advised users to examine their items and adjust the sizing manually if necessary, resulting in member annoyance.
Size Classification Updates
Previously, the sizes had both numerical and alphabetical indicators, for instance S/8 or M/10.
The updated approach includes a letter and a range such as S/UK 8-10.
In some cases, the sizing has been recategorised - like an L measurement used to be a 12 but is now a UK 16-18.
User Stories
A fashion influencer, who makes TikTok content about plus-size fashion, said the change "makes both selling and buying harder".
"Few clothing companies classify XL as 20-22," the way the service now categorizes.
A different member, based in Glasgow, said garments she listed with size 14 tags were appearing on the platform as larger sizing 20-22.
"If anyone [who is] size 20-22 buys them they may become frustrated," she stated.
Manual Updates
Another shopper, located in England, explained she became annoyed because the modification necessitated personal updates the sizes on "every single listing".
"For me this is particularly frustrating, as I'm chronically ill and selling on Vinted has been paramount after experiencing income reduction," she said.
Marketplace Information
The platform boasts over 100 million shoppers, comprising 18 million UK members.
It has proved a popular alternative versus similar marketplaces including eBay and Depop.
This represents another occasion that an unexpected update to the app has proved unpopular: earlier, Vinted reversed a change to its shipping options due to shopper criticism.