SharePoint external sharing issue.

Question

everytime I share any file via sharepoint to an external user it asks for login prompt

Answer 1

Hi @Arpit Tater,

This behavior is usually expected and depends on your SharePoint/OneDrive external sharing configuration. If the file is shared using a Specific people or People you choose link, external recipients must verify their identity by signing in or using a one-time passcode before accessing the file.

When sharing to external users, please select "Anyone with the link" (if available) instead of Specific people.

If the "Anyone with the link" option is missing, your organization's administrator has likely disabled anonymous sharing, in which case external users will be required to authenticate before accessing shared content.

Please check for your organization's external sharing policies by following this instruction:

Note: You must have the appropriate administrative permissions to perform these steps. If you are not a Microsoft 365 administrator or are unsure who manages Microsoft 365 and SharePoint in your organization, please refer to the following guidance to identify your administrator: How can I find my Microsoft 365 admin? - Microsoft Support    

1. Check sharing settings in Microsoft 365 Admin Center 

• Sign into Microsoft 365 Admin Center with the Global admin account. 
• Go to Settings > Org settings  
• From the Services tab > scroll down and click on SharePoint 
• Ensure external sharing is set to allow "Anyone" 

2. Check SharePoint Admin Center 

• From the Microsoft 365 Admin Center, scroll down and navigate to SharePoint Admin Center. 
• Go to Policies > Sharing 
• Ensure the sharing level aligns with your organization’s existing configuration (previous step). 

• Click More external sharing settings and adjust the options based on the organization’s requirements. 
• Navigate to Active Sites > Select the relevant site 
• In Settings tab, confirm that "Anyone" is enabled at the site level. 

• Return to your SharePoint site and test the behavior again.

Please let me know the result after you try all the steps above and I'll be happy to assist further if needed.

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