How to Fix Access is denied while creating folder using REST API in Site sharepoint online?

Question

Hello,

I'm trying to create a folder in the SharePoint site using REST API

Reproducing steps:

1. Created access token by using steps mentioned in the below link [https://global-sharepoint.com/sharepoint-online/in-4-steps-access-sharepoint-online-data-using-postman-tool/
2. I tried creating a folder using the API mentioned in Image.
3. Initially, I got an invalid token type, an Unauthorized error.
4. Then followed the steps given in the below link [https://learn.microsoft.com/en-us/answers/questions/714147/token-type-is-not-allowed-error-on-sharepoint-rest
5. configured these permissions using PowerShell commands set-spotenant -DisableCustomAppAuthentication $false
6. Then I tried to create a new access token and replaced it in the folder creation API
7. When I try to execute Please help to solve this issue

Answer 1

Hi @Thilothama Tenneti

Per my test, I found there is one step missing something in the link you shared. Please check if you have entered App's Permission Request XML and trust it correctly in https://xxx.sharepoint.com/sites/xxx/_layouts/15/appinv.aspx. It should be like following

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

Then trust it after click create

Finally I created the folder successfully by the steps in the link

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