Urgent Please - Extrnal user not beeing added to site using CSOM 16.1

Question

I am trying to add permission to a folder using the csom 16.1
with this line of code
DocumentSharingManager.UpdateDocumentSharingInfo(spContext, fullUrl,userRoleAssignmentList, true, true, true, null, false, false)

I am not getting any errors and all other permission are working perfectly, only the external users are not being added.

I tried to Change my site sharing configuration to be "New and existing guests – guests must sign in or provide a verification code"
but still noting is working

Please can some tell me if something changed

Answer 1

Hi @Omri Kaufman ,

We need to check “Limited-access user permission lockdown mode“ is deactivate. Otherwise the folder is unable to be shared with external users.
Go to site Contents>Site Settings>Site Collection Features

And Change your site sharing configuration to be "Anyone – Users can share files and folders using links that don’t require sign-in"

Here is code for sample:

        var users = new List<string>() { "user1", "user2 " };  

        var userRoles = new List<UserRoleAssignment>();  
        foreach (var user in users)  
        {  
            clientContext.Web.EnsureUser(user);  
            UserRoleAssignment role = new UserRoleAssignment();  
            role.UserId = user;  
            role.Role = Role.View; //Role.Edit  
            userRoles.Add(role);  
        }  

        string absoluteFileUrl = "folderurl";  
        DocumentSharingManager.UpdateDocumentSharingInfo(clientContext, absoluteFileUrl, userRoles, true, true, true, "Test Folder", true, true);  
        clientContext.ExecuteQuery();  
        Console.WriteLine("success");  
        Console.ReadLine();  

And the code will send an email to user’s mailbox. But it can only add permission to existing external users.

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Answer 2

so for the customers that are using my company tool Cloudsfer.com migration tool all is working and the limit access solved the problem, for new and existing external users, but for my domain when I am adding permission to external users that are not is my domain i am still not getting an invitation.