Hi @happyyear,
I was referring to the last screenshot in that blog, the Update document set action with the nometadata and MERGE headers. That one is not using the listdata.svc, but just the items.
Below is an example in my own dev environment.
Uri
_api/web/lists/getbytitle('@{variables('LibraryName')}')/items(2)
Headers
{
"Accept": "application/json;odata=nometadata",
"Content-Type": "application/json;odata=nometadata",
"If-Match": "*",
"X-HTTP-METHOD": "MERGE"
}
Body
{
"WebUrl": {
"Description": "Power Automate ftw!",
"Url": "https://powerusers.microsoft.com/t5/Building-Flows/Send-a-HTTP-request-to-Sharepoint-Document-Set-in-the-Library/m-p/2165562#M240216"
}
}
The test result in the metadata of the document set with item id 2
