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Hi All, i am doing trailhead Superbadge Lightning Experience Reports & Dashboards Specialist, but i am getting this error. unexpected error while verifying this challenge. reference error id: IUPYXQJN

Challenge Not yet complete... here's what's wrong: 
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: IUPYXQJN
Khan AnasKhan Anas (Salesforce Developers) 
Hi Udaya,

Greetings to you!

I suggest you please REFRESH THE DASHBOARDS before checking up the challenge.

If the problem still persists use a new Developer Org / Trailhead Playground for validating the challenge. If the problem persists, log out of all accounts and log in once again in a different browser by clearing the cache and cookies which should probably do the trick.

Also, this kind of error pops up due to renaming reports or dashboards label after creation or when you Clone dashboards. Thus for any further challenges: DO NOT CLONE Dashboards or Reports. Always create from scratch.

Try these steps:
  • Delete the existing dashboards/reports.
  • Delete it from the bin as well.
  • Create new dashboards/reports.
  • Refresh dashboards before checking up the challenge.
  • Check Challenge.

I hope it helps you.

Kindly let me inform if it helps you and close your query by marking it as solved so that it can help others in the future. It will help to keep this community clean.

Thanks and Regards,
Khan Anas
Raj VakatiRaj Vakati
Refer this links





Thank you so much Khan. Above points are helps me to clear the task. Thanks Udaya
Khan AnasKhan Anas (Salesforce Developers) 
It's my pleasure. I’m glad I was able to help!

Kindly mark this as solved if it's resolved so that it gets removed from the unanswered queue which results in helping others who are encountering a similar issue. *(After you choose the best answer the question is marked as “resolved”)*

May the (Sales)force be with you :)
Happy Learning!

Khan Anas