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Error: The parameter __metadata does not exist in method GetById

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Posted on by lorinda_abey

Hi Community,

I am trying to rename a SharePoint file in a Power Automate flow using 'Send an HTTP request'. I have done this before in another flow without issue. I can't get it to work in this new flow / document library.

Can anyone see the problem?

The error I'm getting is:

Below are the parameters I've put into the 'Send an HTTP request':

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Building flows

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Expiscornovus 33,189 Most Valuable Professional on at

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Hi @lorinda_abey,

Might be a typo in your URI?

Can you try and change your URI from _api/lists to _api/web/lists?

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lorinda_abey 41 on at

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Unfortunately this doesn't fix the issue. Same error message pops up.

I am pretty confident about the Uri as I've done a check in the web browser to ensure it's valid.

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Expiscornovus 33,189 Most Valuable Professional on at

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Hi @lorinda_abey,

I always use the _api/web/lists URI. I have never used _api/lists endpoint, so not sure if that would actually work.

Also the the Microsoft documentation uses the _api/web/lists in their examples, below is the update list item code snippet:

https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/working-with-lists-and-list-items-with-rest#update-list-item

Btw, I also notice you are using PATCH in your X-HTTP-Method Key in the Headers section. Can you change that to MERGE?

And lastly, have you double checked that you are using the correct ListItemEntityTypeFullName property value in your type property?

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lorinda_abey 41 on at

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Changing to MERGE does not work either. Same error message.

And yes I'm confident of the ListItemEntityTypeFullName property value. I copy and paste this and the Uri from the browser to ensure there are no typos or mistakes. See below:

Also I've used both the PATCH method, and the Uri without 'web' in another flow and it works perfectly!

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Expiscornovus 33,189 Most Valuable Professional on at

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Hi @lorinda_abey,

Strange that it does not work.

If it helps, here is my setup I used while testing this.

URI

_api/web/lists/getbytitle('AdminTraining')/items(@{triggerOutputs()?['body/ID']})

Headers

{ "Accept": "application/json;odata=verbose", "Content-Type": "application/json;odata=verbose", "If-Match": "*", "X-HTTP-Method": "MERGE" }

Body

{ "__metadata": { "type": "SP.Data.AdminTrainingItem" }, "FileLeafRef": "PowerAutomateRename.docx" }

The flow ran successfully without an error.

The doc which I uploaded (Test.docx) is renamed to PowerAutomateRename.docx

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lorinda_abey 41 on at

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Today I tried your exact code and it worked.

I then reverted back to my original code (step by step testing each change) and it worked too.

Very frustrating. I am no closer to understanding what went wrong but at least it seems to be working today.

Thank you for your help.

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