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Patrick James FrancoPatrick James Franco 

Process Automation Specialist Superbadge - Reference error id: ZPRTXUAI

When checking for my Challenge 1 solution, I get this error:

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: ZPRTXUAI


I'm using a fresh Trailhead Playground for this with nothing on it except for the required unmanaged package and components for Challenge 1.
Best Answer chosen by Patrick James Franco
Patrick James FrancoPatrick James Franco
So I managed to pass the challenge by splitting my validation rule into two. (One dedicated to check for State and the other for Country)

Previously, both logic were under one validation rule as the challenge note stated: "Create a validation rule"

All Answers

NagendraNagendra (Salesforce Developers) 
Hi Patrick

Sorry for this issue that you're encountering.

Can you please double check that your Developer Edition Org does not have any namespaces setup in it?Trailhead does not support namespaced DE Orgs and so if you have a namespace registered for the DE Org, you'll need to sign up for a new one and complete this module there.

When trying trailhead, we encourage users to create new Dev Org's such that the previous config changes do not affect the trailhead challenge settings.

To login into trailhead you can use your old org but for activity(code and config) related changes you can use new org. In such a way all point will add in your old profile only.

Please check the below link for help.​
http://https://developer.salesforce.com/page/Trailhead_FAQ
Please mark this as solved if the information helps.

Regards,
Nagendra.
Patrick James FrancoPatrick James Franco
@Nagendra

My trailhead playground doesn't have namespace.. and creating a new DE org resulted to a similar error:

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: KACMWZHC
Hans LissHans Liss
@Patrick: I had to deactivate and reactivate my assignment rule to pass the first step.
Patrick James FrancoPatrick James Franco
So I managed to pass the challenge by splitting my validation rule into two. (One dedicated to check for State and the other for Country)

Previously, both logic were under one validation rule as the challenge note stated: "Create a validation rule"
This was selected as the best answer