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nikhithanikhitha 

Challenge not yet complete in My Trailhead Playground 1 Error: The validation rule failed to enforce the business logic

can someone let me know where I'm I doing wrongUser-added image
Agustin BAgustin B
HI Sia, Try to do the same process in different Trial head playground.
You will pass the exam with not error. I 've heard of people with this issue solving it that way.

If it solves your issue please mark this answer as correct, it may help others.
AbhishekAbhishek (Salesforce Developers) 
Hi,

For all the Trailhead issues please report it here,

https://trailhead.salesforce.com/help?support=home#

https://trailhead.salesforce.com/help

So that our trailhead support engineers will look into it and get back to you.

I hope you find the above solution helpful. If it does, please mark as Best Answer to help others too.

Regards,
Salesforce Support.
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nikhithanikhitha

@Agustin B I tried creating a new playground but still i could see the same error
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Can we use the same script for normall or low authority projects? I'm asking for my marketing blog of dropshipping guide (https://conversionskitchen.com/5-dropshipping-mistakes-to-avoid-as-a-beginner-in-2021/).
Malika Pathak 9Malika Pathak 9
Hi Nikita,
Kindly use a developer edition to pass this challenge. A trailhead playground may not help you pass this challenge.

If the error still persists: https://trailhead.salesforce.com/en/help?support=home

Please mark this answer as best if it helps to help others.