In this article, we will show you how you can return errors resulting from your custom database connection for troubleshooting purposes. We will also cover some basic troubleshooting steps for your scripts.

There are three different errors you can return from a database connection:

Error	Description
new WrongUsernameOrPasswordError(<email or user_id>, <message>)	an error that occurs when you know who the user is and want to keep track of a wrong password being used
new ValidationError(<error code>, <message>)	a generic error with an error code
new Error(<message>)	a simple error (no error code included)

To return an error, call the callback function while passing error as the first parameter:

Example:

If you use Lock, you can customize the error messages that will be displayed by adding them to the dictionary.

Test the script using the TRY button. If your settings are correct you should see the resulting profile:

If you do not get the expected result, or you receive an error, use console.logstatements in your script and try the connection again. The output of console.log prints in the try the script window.