Walmart is ramping up for an ecommerce war.

Walmart has been gradually building up its online delivery options over the last several years in an effort to compete with Amazon’s definitive stranglehold over the ecommerce industry. One of the retail company’s biggest hurdles has been developing its ecommerce platform to match Amazon’s expedience and convenience. To aid in the efforts, Walmart has secured a new ally in the form of Shopify.

Shopify, an ecommerce company that sells tools and platforms to those looking to start their own online business, announced a partnership today with Walmart to help them develop their own online platform. In exchange for their aid, Walmart will begin listing up to 1,200 of Shopify’s independent sellers on their new platform.

“This integration will allow approved Shopify sellers to seamlessly list their items on Walmart.com, which gives Walmart customers access to a broader assortment,” Jeff Clementz, vice president of Walmart’s marketplace said in a press release. “We are focused on U.S.-based small and medium businesses whose assortment complements ours.” Clementz went on to add that one of Walmart’s current strategic priorities is growing their third-party marketplace.

Walmart’s various movements into Amazon’s territory seem to have yielded some profits for the retail giant. Last quarter, their online sales grew by 74%, and sales from third-party distributors began to outpace Walmart’s own sales. However, Walmart’s ecommerce efforts have not yet outpaced its physical storefront sales, with online sales only making up a small fraction of the company’s $500 billion-plus sales numbers.