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HTTP-Request edit library item

Hello Power Automate Forum,


im trying to change the value of one column from a libary item, via the API.

Following the the offical documentay:


Getting the ListItemEntityTypeFullName:





I ended up with this:



Which leads to this error


Roughly translated
  "status": 400,
  "message": "The Parameter \"__metadata\" does not exist in the method \"SP.Data.RechnungenItem\" . 



I have tryed all kinds of Header configurations fors several hours. Starring at I dont know how many kinds of errors. Getting the information works fine, but edititing it seems impossible.


Can somone please point me in the right direction.


Best wishes,


Advocate I
Advocate I

I have used the below method to update the column values in the library using the HTTP request.





Try running the text with the following statement only.

"Title" : "test"

If you still get an error, try deleting all the header content and running it once.

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