26STK Push resultM-Pesa error 26: M-Pesa system busy
This is an STK Push (Lipa na M-Pesa Online) result code — it comes back on the Daraja callback after the customer responds to the payment prompt.
What causes it
M-Pesa is under high load and rejected the request because the system was busy. This is an M-Pesa-side condition, not your configuration.
How to fix it
Back off and retry the same request after about 30 seconds (exponential backoff recommended).
How paylod handles this
With paylod you never parse this code by hand: the hosted M-Pesa callback decodes the STK Push result for you and returns a normalized status, so you handle a clean success or failed webhook instead of raw Daraja result codes.
See the paylod M-Pesa API