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OneDrive: DeleteFile does not work with ID

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Posted on by Johannes

Hello there,

i am trying to set up a PowerAutomate flow to periodically clear a few directories in my onedrive that grow over time with log files. OneDrive offers a "Delete file" action (OneDrive - Connectors | Microsoft Learn) with a file id parameter. I get a file id from the previous "ListFolderV2" action (OneDrive - Connectors | Microsoft Learn) but i end up with error 400. Is this the wrong approach or is the documentation not updated? Details below:

First i try to list the subfolders of the folder i want to be cleared. this works fine:

Then i do a loop and go throw each subfolder to list the files. This does work too so far:

I get the files with names and IDs. I then do a loop for the files, process the json and throw the file id into the DeleteFile action. This does not work:

The message translated says "The file id XXX is invalid.".

I dont understand the issue here. It is clearly the id of the file. Am i missing somthing here?

And on a side note: what is wrong with the Categories-field when creating a question. I can't select "Connectors"...

Categories:

Building flows

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creativeopinion 10,502 Super User 2025 Season 2 on at

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The Delete file action requires you to insert the Id dynamic content. The ID should be a lot longer than what appears in your screenshot.

It's hard to offer any recommendations without seeing your full flow and the logic behind it. Toggle off the New Designer and click each action to expand it. Upload a screenshot of your flow in edit mode.

In the meantime, you might be interested in this YT Tutorial:

3 Mistakes YOU 🫵 are Making with the Apply to Each Action in your Microsoft Power Automate Flow

In this video tutorial I’ll go over how to avoid these common mistakes when using the Apply to Each action in a Power Automate flow:
1️⃣ Looping through a Single Item
2️⃣ Creating Unnecessary Nested Loops
3️⃣ Looping through an Unfiltered Array

At the end of the video I share a few helpful insights when it comes to using the Apply to Each action in your flow.

IN THIS VIDEO:
✓ How to avoid the Apply to Each action with a single item array
✓ How to use the item() function to access dynamic content in an array
✓ How to prevent unnecessary nested Apply to Each action loops
✓ How to use the Select action
✓ How to convert an array to a string with the Select action
✓How to use the Filter Query field
✓ How to count the number of items in an array
✓ How to use a condition control
✓ How to use the concurrency control
✓ How to set a top count
✓ How to use Compose actions for troubleshooting

Hope this helps!

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Johannes 4 on at

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I rebuilt CreativeOpinions simple example but this throws the same error:

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creativeopinion 10,502 Super User 2025 Season 2 on at

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Can you click on the Get file metadata action from your last flow run and compare the Id output to the Id being displayed in the Delete File action?

Your Id doesn't look correct to me. One more thing you can check is the expression of the Id dynamic content. It should look like this.

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Johannes 4 on at

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Now i see what you mean, looks a bit shorter in my onedrive.

It seems the ids of the files in my onedrive are bad somehow... i'll delete the files manually now

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