I am trying to use REST API : List transactions for a subscription via postman... https://api.sandbox.paypal.com/v1/billing/subscriptions/S-0001/transactions?start_time=2019-06-01T00:00:00.000Z&end_time=2019-08-01T07:50:20.000Z so when Sending it out , I got invalid Request error see. the msg below : why? what should be the format? some idea? Subscription ID is in my btn... API RESPONSE : { "name": "INVALID_REQUEST", "message": "Request is not well-formed, syntactically incorrect, or violates schema.", "debug_id": "da4a0b5478b6b", "details": [ { "value": "S-0001", "location": "query", "issue": "INVALID_PARAMETER_SYNTAX", "description": "The value of a field does not conform to the expected format." } ], "links": [ { "href": "https://developer.paypal.com/webapps/developer/docs/api/#VALIDATION_ERROR", "rel": "information_link", "method": "GET" } ] }
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