I have the following case inside our SharePoint online root site collection:

  1. Members SP Group >> with Contribute permissions >> contain only UserA & UserB
  2. Readers SP Group >> with Read permissions >> Contain Everyone except external
  3. Inside the root site, we have a custom list which have a unique permissions (Contribute for all), where it got this permission:-

    • Members Group >> with Contribute permissions >> contain only UserA & UserB
    • Readers Group >> with Contribute permissions >> Contain Everyone except external
  4. this custom list has a list workflow 2013 which get triggered when items are added and modified.

now if userC (who is a reader on the root site and contributor on the list), create a new item inside the custom list, then the workflow 2013 will raise this error:

Activity in progress

Retrying last request. Next attempt scheduled in less than one minute. Details of last request: HTTP Forbidden to https://*******.sharepoint.com/_api/web/lists(guid'95f1cccb-8f6f-46f6-89c8-91046a3436cd')/Items Correlation Id: 4590651d-d586-53c6-a024-6fe29fbc91a7 Instance Id: d19ac710-3665-4bdc-b4fb-d437e8877a9c

Access denied. You do not have permission to perform this action or access this resource.

so why is this happening? now if i grant userC contribute on the root, the workflow will run without errors... but i do not want userC to have contribute on the root site

1 Answer 1



Workflow is throwing this error because your end user is not having permission on a list whose GUID is 95f1cccb-8f6f-46f6-89c8-91046a3436cd.

Probably this list is the workflow history or workflow task list associated with your workflow OR any other list you are using in your workflow actions.


  1. Identify the list with GUID 95f1cccb-8f6f-46f6-89c8-91046a3436cd in your SharePoint site.
  2. Grant the permissions to the end users on this list.
  • 1
    @Genesh Sanap thanks for the valuable feedback , this list if the "workflow history" list...
    – John John
    Commented Jan 24, 2020 at 13:40

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