An unexpected error occurred while inserting Opportunity records and we couldn't check your work. Make sure Opportunity records can be inserted in this org, and click "Check Challenge" again. If this continues, contact the Trailhead Help team.

Hi @Bhoomika Tumuganti,

I'm Ravindra from Trailblazer Help team.

I can see in your profile that the "Customize a Salesforce Object" project was completed successfully. 

Please feel free to mark the best answer if any of the above responses helped you to fix the issue. Thank you!

Best Regards,

Ravindra