Problem in node upload a file your request is invalid or could not be processed by the service

Questions
1

Hi everyone,

I’m facing an issue while trying to connect Dropbox in n8n, specifically with the Dropbox → Upload a File node.

The connection seems to authenticate correctly, but when I try to execute the node, I get the following error message:

Error: Problem in node upload a file your request is invalid or could not be processed by the service.

Here’s what I’ve tried so far:

  • Reconnected and re-authenticated Dropbox credentials.

  • Checked Dropbox API permissions and scopes.

  • Verified file path and file size (within API limits).

  • Tried using both binary data and file path inputs.

Still, the same error persists.

Has anyone faced this issue recently? Would appreciate any insights or solutions that worked for you.

2

hello @dm_Evokedesign

Please, share the workflow.

You can select all nodes with Ctrl+A and copy them with Ctrl+C. Then, past the content after pressing the button </> with Ctrl+V.

3

Since we cant see the workflow I can only make assumptions. I assume you created a dropbox app, got the Oauth2 credentials? Check my upload node from this workflow to see if its what you have

I use this as a subworkflow to upload to dropbox: