I am using PayPal classic API. When I try to reach out for the sandbox test account API credentials, I got the empty screen below. Can anyone tell me what is going on?
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There are some issues with the Credentials not appearing for some accounts. Currently you are logged into the developer account. Try logging into the actual sandbox seller account, and going to the profile and requesting the credentials. You should be able to view these from within the Sandbox seller account, and if they have not been requested yet, you can generate these.