Shoppers are voicing their frustration due to a modification that led to items being listed as the wrong size.
This online marketplace has updated its sizing categories for female and kids' apparel failing to inform all users about the change.
Countless users and merchants are expressing on platforms saying Vinted listings now show an altered size classification compared to what was initially listed because of the remapping.
Vinted explained the new system was more in line with comparable marketplaces.
It has advised users to examine their items and adjust the sizing manually where appropriate, causing user dissatisfaction.
Before the change, the sizing featured numerical and alphabetical indicators, such as S/8 or M/10.
The new system has a letter and a range such as S/UK 8-10.
With some products, the size labels have been reassigned - for example a size L used to be a 12 but is now a UK 16-18.
A fashion influencer, who produces content about larger sizing, stated the update "complicates both purchasing and selling".
"Rarely do manufacturers list XL as sizes 20-22," as the platform currently indicates.
Another user, located in Scotland, said garments she listed featuring size 14 markings were displaying on the service as larger sizing 20-22.
"If buyers measuring 20-22 acquire them they will likely be quite upset," she stated.
Another shopper, from Derby, stated she felt frustrated by the change as she had to manually change the sizes on "every single listing".
"This situation is especially annoying, since I have chronic health issues and Vinted sales have been crucial after experiencing income reduction," she said.
The platform boasts over 100 million users, 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 on the platform has faced criticism: earlier, the service retracted a modification concerning shipment methods due to shopper criticism.
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