TikTok is planning to launch its in-app shopping platform in Spain and Ireland as early as October, restarting a stalled campaign to expand its fastest-growing business in Europe.

ByteDance Ltd.’s social media startup told partners including merchants and creator agencies in recent weeks to get ready for a TikTok Shop debut in the two countries, according to people familiar with the matter. The rollout will be smaller than previously envisioned although preparations are underway to bring the portal to other parts of Europe next year, the people said, asking not to be identified discussing private information.