using postman ver 7.0.4 entered https://api.sandbox.paypal.com/v1/oauth2/token entered authoization : BASIC entered correct username and pass ( made new password twice, still get same error shown below) under BODY entered, key: grant_type & value: client_credentials HIT SEND, get this error tried making new password from the secret and checked the user ID I think I have all the required values correct. "name": "INTERNAL_SERVICE_ERROR", "message": "An internal service error has occurred", "debug_id": "cf47b96f4cfaa" }
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