I am a software developer currently working on implementing an authentication with PayPal feature in my Ruby on Rails application. I am reaching out to seek assistance with a persistent issue I am facing during the testing phase.
As per the provided documentation and guidelines from the PayPal platform, I have integrated the PayPal API to obtain an authorization code for the authentication process. To perform the initial authentication, I am using the default application credentials, including the Client ID and Client Secret, obtained from my PayPal developer account.
The first step of the authentication process involves redirecting the user to the PayPal sandbox login window through the following API call:
API: https://www.sandbox.paypal.com/signin/authorize?flowEntry=static&client_id=CLIENT-ID&scope=LIST-OF-S...
While I am able to successfully redirect to the PayPal login window, I am encountering an issue when attempting to log in using test credentials. Every time I enter the test credentials, I receive the error message: "Please check your entries and try again." This occurs despite entering the correct sandbox credentials for testing purposes.
I have thoroughly reviewed the implementation and verified that the provided sandbox credentials are correct. Additionally, I have made sure that the required scopes are appropriately set for the authentication process.
I have attempted the authentication process multiple times, but the error persists consistently. I believe I have followed the guidelines accurately, and yet, I am unable to proceed beyond this point.
