Vinted users have been reacting angrily after an update resulted in items being listed as the wrong size.
The second-hand shopping app has altered its size classifications for women's and children's clothes failing to inform all users about the change.
Social Media Response
Numerous buyers and vendors are posting online claiming that product pages now present an altered size classification versus the original listing due to the recalibration.
The platform stated the revised method more closely matches comparable marketplaces.
It has advised users to review their products and update the measurements by hand where appropriate, which has left users frustrated.
Size Classification Modifications
Before the change, the sizes had both numerical and alphabetical indicators, like S/8 or M/10.
The revised method features a letter with a size spectrum such as S/UK 8-10.
With some products, the size labels have been reassigned - such as a large size was previously a 12 but now shows as UK 16-18.
User Experiences
One content creator, who produces content about larger sizing, said the change "makes both selling and buying harder".
"Few clothing companies classify XL as 20-22," the way the service now categorizes.
Another user, located in Scotland, stated items she posted with size 14 tags were appearing on the platform as larger sizing 20-22.
"If anyone [who is] size 20-22 buys them they're going to be very disappointed," she explained.
Required Changes
Charlotte Lunn, from Derby, said she had been left angered because the modification necessitated personal updates the measurements for "each individual item".
"For me this is particularly frustrating, since I have chronic health issues and platform income has been essential for me since losing part of my income," she explained.
Service Background
The app has more than 100 million members, including 18 million in the UK.
It has proved a popular alternative compared to resale services such as eBay and Depop.
This represents another occasion where an unanticipated change on the platform has faced criticism: earlier, the service retracted a modification regarding delivery choices following member complaints.
