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Error on Lipa na mpesa's QUERYSTATUS API
Hi,   Am doing a test/sandbox call on this Lipa Na Mpesa API using a PHP class. The class's method is able to initiate Push(prompt user to key in pin) am able to get CheckoutRequestID from this call but once is use the same CheckoutRequestID on query status, i get the errors below: Note* Am using the same credentials(password & Accesstoken) used in my first call(initiating pushSTK)   Array ( [requestId] => ws_CO_06032018161253014 [errorCode] => 500.001.1001 [errorMessage] => Wrong credentials ) Kindly assist. Time is much more of the essence.