Hi @Pallavi H P,

I’d recommend first reading the OAuth 2.0 requirements and migration document found here.

App Password is a new way to authenticate through the SOAP API and get an access token for your app. It works by having a user create a special password linked with their profile (user ID) in the user profile Security and Privacy tab. They can then use this password to authenticate and obtain an access token in place of using their own personal account passwords. Account admins can also use an App Password to make SOBO calls, sending on behalf of an account user without getting their explicit permission. You can read more details in this documentation.

I hope the information above is helpful, but if you require further help, please don’t hesitate to reach out to our support team through a support case and we’ll be happy to assist you with any errors you’re facing.

Best,

Leandro Reis