EBay has filed a lawsuit against Amazon, accusing the US retail giant of using illegal tactics to recruit sellers.
It says Amazon representatives abused eBay’s internal email system to contact sellers – a violation of the marketplace’s policies.
Amazon declined to comment on the case, which follows a letter from eBay demanding an end to the activity.
It had previously said that it was investigating the claims.
In the lawsuit filed in Santa Clara County, California, eBay says Amazon representatives created eBay accounts to solicit sellers, often sending messages within minutes of setting up their profiles.
The activity dates back to at least 2015 and involved dozens of Amazon representatives, who each sent hundreds of emails, it says.
EBay was alerted to the issue a few weeks ago by a seller and asked Amazon to stop.