Doordash is calling off its partnership with Walmart, which had the service delivering groceries and other goods from the retail chain to customers for over four years. A source close to the situation told Insider that the partnership’was no longer mutually beneficial’.

Doordash gave Walmart a 30-day notice, which means the partnership will officially end in September. The two companies first teamed up in 2018 when Walmart started testing having groceries delivered by DoorDash.

Walmart spokesperson Leigh stidham said’we’d like to thank DoorDash for their partnership and support of our customers the past several years’. Doordash did n’t immediately respond to the verge’s request for comment.

Doordash currently does n’t let you order from Walmart. It’s unclear whether DoorDash will offer deliveries via its app.

Walmart has been busy building out its own delivery service platform, Spark. Spark accounts for 75 percent of deliveries and services 84 percent of households in the US. Walmart also announced that it’s also working on a white label delivery service, called Golocal, to handle last-mile logistics and deliveries for other businesses.

Doordash is axing its partnership with Walmart, but it has forged a new one with Facebook. The service will now pick up and deliver items purchased through Facebook marketplace, so long as they’re small enough to fit inside the trunk of a car.

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