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Question

Salesforce Experience Cloud users receive invalid_grant during Box Preview in Experience cloud

  • August 4, 2026
  • 1 reply
  • 9 views

Salesforce Experience Cloud users receive ‘invalid_grant’ during Box Preview while logging in as customer community plus licensed user 

 

Current Status:

- Internal Salesforce users can preview files successfully.

- Customer Community Plus users cannot preview files.

- Box App is Authorized and Enabled.

- Generate User Access Tokens is enabled.

- Make API calls using the as-user header was enabled and saved.

- Required file and folder scopes are enabled.

- Box service account owns the content.

- External collaboration is enabled.

1 reply

Rona Box
  • Community Manager
  • August 5, 2026

Hi ​@Jinashree 

Welcome to Box Community, and seems that your collaborators are unable to access the Box widget in the Salesforce page, we’re here to assist! 

 

It indicates that you have already collaborated with one of our team members, and please keep an eye out. Someone from the Box Product Support team is already working on your case and we will reach out to you as soon as possible. 

 

Thanks for posting, and we hope to get this sorted out soon!