C2B00016C2B / B2C resultM-Pesa error C2B00016: Other Error (Reject)
This is a C2B / B2C result code — it applies to customer-to-business validation or business-to-customer disbursement flows.
What causes it
A catch-all C2B validation rejection for any other reason not covered by the specific reject codes.
How to fix it
Return this reject code for unclassified validation failures, and log the reason for follow-up.
How paylod handles this
paylod records and decodes every C2B and B2C result, and lets you test the flow without hosting your own validation and confirmation callbacks — so you spend less time on Daraja plumbing and edge-case result codes.
See the paylod M-Pesa API