Vinted users have been reacting angrily after an update resulted in products showing incorrect sizing.
The second-hand shopping app has altered its measurement guidelines for female and kids' apparel without notifying all shoppers about the modification.
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.
The platform has recommended to review their products and manually change the size where appropriate, resulting in member annoyance.
Previously, the measurements included numerical and alphabetical indicators, such as S/8 or M/10.
The new system has an alphabetical indicator and numerical range such as S/UK 8-10.
In some cases, the size labels have been reassigned - such as a large size was formerly size 12 but is now a UK 16-18.
A fashion influencer, who makes TikTok content about plus-size fashion, stated the update "complicates both purchasing and selling".
"Rarely do manufacturers list XL as sizes 20-22," the way the service now categorizes.
A different member, from Glasgow, stated items she posted featuring size 14 markings were appearing on the platform as measurements 20-22.
"If buyers measuring 20-22 acquire them they will likely be quite upset," she stated.
Charlotte Lunn, 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 Vinted sales have been crucial for me since losing part of my income," she explained.
The platform boasts over 100 million shoppers, 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: earlier, Vinted reversed a change to its shipping options after backlash from users.
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