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Troubleshooting "Invalid parameters"

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Posted on by Greg27

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I have a flow that is generating errors. It gives me the message "Invalid parameters" when I edit the flow, but when I go into the specific action, it doesn't tell me where the invalid parameter(s) are. Is there a way to troubleshoot this? I also have the same error in a "Start and wait for an approval" action, but the same thing happens when I go into it. It doesn't tell me anything inside the action. Looking for some guidance on how to determine what the problems are.

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Tomac 4,142 Moderator on at

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Please copy/paste or show a screenshot of the full error message and a screenshot of the actions that are giving the errors so we can see the context.

You can paste screenshot images directly into the reply box so they show up immediately.

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Kalathiya 2,410 Super User 2026 Season 1 on at

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Hello @Greg27,

Generally, this error is caused by a renamed or deleted SharePoint column, variable, or action that the flow is still referencing. A data type mismatch can also trigger an "Invalid parameters" error.

Review any recent changes made to the flow or connected data sources. Also, verify whether any columns or variables were deleted while the flow is still referencing them in actions, dynamic content, or expressions. It's common to see this error when a SharePoint column has been removed or renamed, or when a variable was deleted but is still being used somewhere in the flow.

Or If you can share the exact error message and a screenshot of the action, that would help us troubleshoot the issue.

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Greg27 782 on at

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Here is the screenshot of the flow when I open it. After about 10 seconds, the errors/warnings disappear.

Here is the screenshot of the "Start and wait for an approval" action:

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Kalathiya 2,410 Super User 2026 Season 1 on at

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Hello @Greg27,

This is a known issue with the Power Automate new designer where it sometimes temporarily shows “Invalid parameters” or warnings while loading the flow. In some cases, the designer may also freeze or show out of memory-related error.

If the errors disappear after a few seconds and the flow saves/runs correctly, it is usually a UI/loading.

Could you please switch old to classic designer and try?

or you can raise the support ticket for same.

Raise a Support ticket. Get Support in Power Platform - Power Platform | Microsoft Learn

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Greg27 782 on at

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Hi @Kalathiya,

Switching back to the classic designer seems to have removed the errors/warnings. Thanks for the help!!

Greg

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