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Retail | BLAZEPAY ACH (Aeropay) Common Issues and Troubleshooting

Below, merchants will find errors that may occur with the BLAZEPAY ACH integration and how to troubleshoot them. 

Error Code

Meaning

Resolution

Message

Trouble linking the account

Instant Account Verification (IAV) 

Instant Account Verification (IAV) is OFF by default. If a customer's bank is not supported by AeroSync (the bank linking platform), they will receive a notification to contact support. Aeropays' support team will then assist in manually linking the customer's bank account. No action is required on the merchant's side, as this is expected behavior for unsupported banks.

Screenshot 2026-02-04 123914

 

AP300

Bank Connection Error

The balance refresh of this user’s account failed and is usually caused by the user resetting their banking password or security settings within online banking. Balances will also become stale within 6-12 months.

This is called a UAR (User-Action Required) error where the user must reconnect their account or you may contact BLAZE to escalate to the processor.

"We are having issues connecting to your bank. Try reconnecting your bank or reach out to support@blaze.me to resolve the issue."

AP302

Insufficient Funds

The user’s current balance does not meet the transaction amount. Pending transactions in the user’s account may be impacting the total available balance.

The user must deposit additional funds into their connected account. (This may take 1-2 business days to be reflected)

"We could not approve your payment. Your available balance might be insufficient for this transaction. Please add more funds to your account or contact support@blaze.me for more information."
AP402 Merchant bank account invalid Your merchant account may not have a valid bank account. Reach out to support@blaze.me. "No bank account for merchant id {merchant}."
AP405 Error adding bank Confirm valid bank account for user. There may be an issue with bank linking at this time. "Error adding user bank account."
AP411 Invalid account type User may have connected a non-checking account. Ensure checking account is linked. "Invalid account connected for processing payments. Please connect a checking account."
AP700 Payload is missing required parameter Include the missing required parameter. Please reach out to support@blaze.me for additional assistance. "Missing required Parameter: '{parameter}'"
AP108 Cannot create user Error creating a new user. Reach out to BLAZE support. "Error adding user"
AP109 User is disabled The user should email support@blaze.me if they’ve made payments. If they are a new user, they should contact support@blaze.me "We've detected delinquent activity on your account. Reach out to support@blaze.me  to reactivate your account."

AP306

Balance does not meet requirement

The user's available bank account balance is insufficient to cover the transaction.

The user must deposit additional funds into their connected account. (This may take 1-2 business days to be reflected)

"We could not approve your payment. Your available balance might be insufficient for this transaction. Please add more funds to your bank account or contact support@blaze.me for more information".
AP403 Blocked routing number The users's bank account has been disabled for security purposes. Try again later. "Sorry, your bank is not supported at this time. Please connect to a different account."