Error in Outlook do not have sufficient permission to perform operation

Question

I followed these instructions:

1. Start Registry Editor. To do this, use one of the following procedures, as appropriate for your situation.  
2. • Windows 10 or Windows 8: Press Windows Key + R to open a Run dialog box. Type regedit.exe and then press OK.
   • Windows 7 or Windows Vista: Click Start, type regedit.exe in the search box, and then press Enter.
   • Windows XP: Click Start, and click Run.  Type regedit.exe and then press OK.
3. Locate and then click the following registry subkey:       **HKEY_CURRENT_USER\Software\Microsoft\Office_x.0\Outlook\Preferences**_ If you use policies, click the following subkey:       **HKEY_CURRENT_USER\Software\Policies\Microsoft\Office_x.0\Outlook\Preferences Note: x.0**_ in the above registry key represents your Outlook version. Please use one of the following values. Outlook 2016: 16.0 Outlook 2013: 15.0 Outlook 2010: 14.0 Outlook 2007: 12.0 Outlook 2003: 11.0  
4. After you select the subkey that is specified in step 3, click New on the Edit menu, and then click DWORD Value.
5. Type IgnoreSOBError, and then press Enter.
6. Right-click IgnoreSOBError, and then click Modify.
7. In the Value data box, type 1, and then click OK.
8. On the File menu, click Exit to exit Registry Editor.

After following this process I attempted again to assign a delegate. I received the error message "The delegates settings were not saved correctly. Cannot modify access control list. You do not have sufficient permission to perform this operation on this object."

How do I overcome this error to assign the delegate?

Answer 1

Hi Nadine Carlson,

Welcome to Microsoft Q&A Forum! 

Have a good day and I hope you're doing well! 

Based on my research into this specific error ("The delegates settings were not saved correctly") and the IgnoreSOBError key, I would like to offer some context that might explain why the previous fix didn't resolve the issue, along with an alternative method to try.  The IgnoreSOBError registry value is designed to bypass a specific check when Outlook cannot contact the Global Catalog. However, it cannot force the system to write permissions if the user account is not eligible for delegation in the first place. 

According to this about delegates: Allow someone to manage your mail and calendar in Outlook

"Delegate access is only available if you're using a work or school account in Microsoft 365 or with Exchange Online." 

This implies that if the person you are trying to add is an external contact (someone outside your organization) or not fully synced in your organization's Active Directory, Outlook cannot update the necessary publicDelegates attribute on the server. This restriction often triggers the "Cannot modify access control list" error you are seeing. 

2. To bypass potential local client conflicts and verify if the delegation is possible on the server level, I recommend trying to assign the permissions directly via Outlook on the Web (OWA): 

• Go to the Calendar view. 
• Under My Calendars, right-click on "Calendar". 
• Select Sharing and Permissions. 
• Enter the email address of the person you want to add and attempt to grant the permissions there. 

If this succeeds, the settings will sync down to your desktop Outlook. If it fails here as well, it confirms that the specific user account you are trying to add cannot be a delegate in your current Exchange environment. 

I hope the information provided gives you some useful insights, at least partially. If you have any questions, concerns, or if I’ve misunderstood anything, please feel free to reach out anytime. 

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Answer 2

To resolve the error "The delegates settings were not saved correctly. Cannot modify access control list. You do not have sufficient permission to perform this operation on this object," you can try the following steps:

1. Check User Permissions: Ensure that your user account has the necessary permissions to assign delegates. You may need administrative rights or specific permissions set by your organization's IT department.
2. Registry Permissions: Verify that you have the correct permissions for the registry keys you modified. Sometimes, if the permissions are not set correctly, it can lead to issues. You can check the permissions of the registry key you modified by right-clicking on it in the Registry Editor and selecting Permissions.
3. Repair Outlook: If the issue persists, consider repairing your Outlook installation. You can do this through the Control Panel by selecting Programs and Features, finding Microsoft Office in the list, and choosing the Repair option.
4. Create a New Profile: If none of the above solutions work, creating a new Outlook profile may help. This can resolve issues related to corrupted profiles that can affect delegate settings.
5. Check for Third-Party Applications: Sometimes, third-party applications can interfere with Outlook's functionality. Ensure that no such applications are running that might be causing the issue.

If you continue to experience problems after trying these steps, it may be beneficial to consult your IT support for further assistance.