In your Zap Runs history details check the tabs for DATA IN/OUT to trace the data flow between steps to help you troubleshoot: https://zapier.com/app/history/
If you need more help, for us to have more context about the error, post screenshots with how your Zap steps are outlined and configured.
Early access
Next Gen Zaps
Build and deploy automations from AI tools you already use. With Agentic Management, if anything breaks, the agent diagnoses the issue and proposes a fix.