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kushal
Unable to lock subscriber, a transaction is already in process for the current subscriber
Below is the message I get. I'm following the example set by Safaricom's dev team using requestbin and sandbox; {"stkCallback":{"MerchantRequestID":"692-1292847-6","CheckoutRequestID":"ws_CO_DMZ_42611238_22062018122722005","ResultCode":1001,"ResultDesc":"Unable to lock subscriber, a transaction is already in process for the current subscriber"}}}   The other error I sometimes get is: {"Body":{"stkCallback":{"MerchantRequestID":"692-1292847-2","CheckoutRequestID":"ws_CO_DMZ_42846447_22062018122613768","ResultCode":1037,"ResultDesc":"DS timeout."}}}   Any ideas? Getting the same error yesterday and again today. I've tried 3 different mpesa numbers, but the same error persists!