• Gerardo Rodriguez Lara
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Hello everyone, I am working one the Module Build Reusable Lightning Components in the Unit Create an Indicator Badge Apex Service, I did all the steps but when I tried to verify this step I get an error: "Challenge Not yet complete... here's what's wrong: 
There was an unexpected error in your org which is preventing this assessment check from completing: System.ListException: List index out of bounds: 0"

Since it is only two Copy / Paste the chanllange of this unit, can someone help me with this ?

I need to enable the ability to send emails from the Activities in the Detail of Account, but when I add Activities to Page Layout, it adds Activities but not the Send Email option.

In setup I've enabled Lightning for Outlook. In related list Activities I've enabled send email. In profile I've enabled 'send email' permission.

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Hi All,

I would like to know, if there is an option how to mass edit data in related list opportunity resource. In my example I need to mass uncheck checkbox "Nabidka" for all records as you can see from printscreen.
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Hello, I have a text field with values ​like: " Cats , dogs " or "banana , apple, orange ". The values ​​are texts separated by commas and can not be repeated in any order. Like I can't have two records, one with "cats, dogs" and other with "dogs, cats". how to create a validation rule for this?
Dear Friends,

I have completed 11 Badges and I received two emails one with subject 'High five! Your t-shirt is on its way.' and another with subject 'Confirm your mailing address to receive your Trailhead t-shirt'. When I try to confirm my address the given link navigating to pardot account.But I don't have pardot account.Please help me...

Thanks,
Hussey