Root Cause

• Incorrect account number entered: The customer entered an invalid or incomplete account number.

• Invalid account number format: The account number does not meet the required format or length standards.

• Unsupported account number for the selected country: The provided account number is not valid for the specified country or currency.

• Test or placeholder data used: The account number provided is a dummy or placeholder value not valid for real transactions.

Troubleshooting and Solutions

• Ask your customer to carefully verify and re-enter the correct account number.

• Ensure the account number format matches the requirements for the selected country or region.

• Recommend your customer to use an alternative valid account if the current details cannot be corrected.

• Avoid retrying the transaction until the correct account number is provided.

• Implement client-side validation to prevent the submission of incorrectly formatted or incomplete account numbers.