"For this challenge, you need to create a trigger that, before insert or update, checks for a checkbox, and if the checkbox field is true, sets the Shipping Postal Code (whose API name is ShippingPostalCode) to be the same as the Billing Postal Code (BillingPostalCode)".

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.DmlException: Insert failed. First exception on row 0; first error: UNKNOWN_EXCEPTION, Use one of these records?: []

below is the code-
trigger AccountAddressTrigger on Account (before insert, before update) {

    try{
for(Account act : Trigger.new){
        If(act.Match_Billing_Address__c == true && act.BillingPostalCode!= null)
        {
            act.ShippingPostalCode=act.BillingPostalCode;
        }
}
}
catch(DmlException e)
{
    system.debug('cause'+e.getcause());
}

}
  

Kindly help , i am unable to login to complete trailheads.

We have a trigger on object AgentWork. We are trying create a test class for the same. While inserting test data, we get below error. 


System.DmlException: Insert failed. First exception on row 0; first error: FIELD_INTEGRITY_EXCEPTION, The agent's status is not associated with the channel for this work.: [ServiceChannelId]

Any inputs? Thanks. 

This is the Challenge:

To pass this challenge, create an Apex class that inserts a new account named after an incoming parameter. If the account is successfully inserted, the method should return the account record. If a DML exception occurs, the method should return null.The Apex class must be called 'AccountHandler' and be in the public scope.
The Apex class must have a public static method called 'insertNewAccount'.
The 'insertNewAccount' method must accept an incoming string as a parameter, name the account after the parameter, insert it into the system and then return the account record.
The 'insertNewAccount' method must also accept an empty string, catch the failed DML and return null.


My Class:

public class AccountHandler {

    public static Account insertNewAccount (String accName, Account a) {
         try{   
          a.name = accName;
    
         insert a;
        return a;
        }
        catch(Exception e) {
            return null;
        }
    }    
}






Throwing this error, how many times i modified the class.
what is the correct class.?