 Require to add a new configuration for Signup modes(Mobile No/Email-id/Employee Code)

Configuration to be organization wise.

Configuration Key: IsSignupLoginType
Configuration Description: Select the Signup mode(Mobile No/Email-id/Employee Code) for signing up.

Values: Mobile No/Email-id/Employee Code

Value function:
When Mobile No: The signup will be done using the Mobile Number.
When Email-id: The sign up will be done using the email-id.
When Employee Code: The signup will be done using the Employee Code