Sandro Pereira • 1/23/2026

Friday Fact: “Run with payload” in the new Logic Apps designer enforces JSON only

The article details a limitation in the new Azure Logic Apps designer where the 'Run with payload' feature only accepts JSON input and doesn't allow custom Content-Type headers. This prevents developers from manually testing workflows designed for XML or other non-JSON payloads within the designer, even though the Logic Apps runtime fully supports them. The post includes observed behavior, a current workaround using external tools, and a suggested improvement for the UI.

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#json #xml #api testing