Why do UPI transactions fail?

UPI transactions can fail due to several technical and account-related factors. According to NPCI guidelines, the primary reasons include:

• Insufficient funds in the payer's bank account.
• Entering an incorrect UPI PIN.
• Exceeding daily or per-transaction limits set by the bank or NPCI.
• Technical glitches or downtime at the remitter or beneficiary bank's servers.
• Weak or unstable internet connectivity.
• Entering an incorrect or inactive UPI ID of the recipient.
• Account-related issues such as a blocked or frozen bank account.