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The National Payments Corporation of India (NPCI) has attributed the Unified Payments Interface (UPI) outage on April 12 to a surge in requests from certain banks that were excessively using the “Check Transaction” application programming interface (API), leading to a temporary system slowdown and reduced payment success rates for several hours.
In a note to partner banks and the payments ecosystem, NPCI said that the UPI system saw success rates drop to around 50 percent for two hours and hover near 80 percent for the next three hours between…
