Upload Files Postman - 403 Error

Question

Hi, I have followed mutiple post to be able to upload files to sharepoint using the API. I have registered the APP and given the following permissions:

<AppPermissionRequests AllowAppOnlyPolicy="true">
	<AppPermissionRequest Scope="http://sharepoint/content/sitecollection" Right="FullControl"/>
</AppPermissionRequests>

But when I POST the file, I get the following error:

Error details:

917656; Access+denied.+Before+opening+files+in+this+location%2c+you+must+first+browse+to+the+web+site+and+select+the+option+to+login+automatically.

Some other settings I have done: Powershell Config :

Access Control Setup :

The final idea is to be able to upload files from SAP to Sharepoint, in a machine to machine interface, using "client_credentials" Oauth flow. Any clues? Thanks in advance. Mikel

Answer 1

Hi @Mikel Maeso ,

You can use following powershell cmdlet to fix error 917656.

Connect-SPOService
Set-SPOTenant -LegacyAuthProtocolsEnabled $True
Set-SPOTenant -RequireAcceptingAccountMatchInvitedAccount $False

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