This question runs in a pre-configured Salesforce environment - no personal connection required.

Create a method that updates a Contact's email domain while preserving the username.

Parameters:

  • contactId (Id): The ID of the contact to update
  • newDomain (String): The new email domain

Returns:

  • Boolean: true if update successful, false otherwise

Requirements:

  • Use DML update operation
  • Handle null contactId or empty domain by returning false
  • Extract username from current email before updating
  • Query the contact first to ensure it exists
  • Handle DML exceptions gracefully

Example:

Boolean success = updateContactEmailDomain(contactId, 'newcompany.com');
// Updates john@oldcompany.com to john@newcompany.com
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