Zapier status: Errors in Custom Actions and Zapier MCP requests due to duplicated query parameters

We've identified an issue where some requests made through Custom Actions in Zaps or Zapier MCP include duplicated query parameters. Because of this, some customers may see errors even when their inputs are valid. Not every app or request is affected, since many apps handle duplicate query parameters without issue. Standard app actions for connected apps that run in Zaps are not affected. We'll update this page as soon as we have more information. If you need help, please reach out to our Support team at [https://zapier.com/app/get-help](https://zapier.com/app/get-help "https://zapier.com/app/get-help").

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