Troubleshooting

This guide helps you diagnose failures during an SDK White Label integration and decide what to do about each one. It covers the failures you handle in your own application. These include warm-up problems, declined payments, service errors, card-read issues, timeouts, and failed refunds.

For the full catalog of result codes and messages, see Error codes reference.

Read the result code first

Every failure carries a result code with a prefix that tells you the failure class. Read the prefix before anything else.

PrefixClassWhere it comes from
00ApprovedThe transaction succeeded.
1-Terminal errorLocal terminal, card reading, or operator (for example, 1-02 canceled, 1-21 generic terminal error).
33-Host errorPayment service (SEP): an HTTP error or an issuer decline.
The code reaches your app in TransactionResult.result, with a human-readable resultMessage. Treat 00 as approval and any other value as a non-approval.
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Note: Host errors are moving from the older 4-xx prefix to 33-xx — the digits stay the same (4-503 becomes 33-503). Terminals that are not yet updated may still return 4-xxx. Treat 4-xxx and 33-xxx as equivalent.

Identify the error screen

For card flows, the SDK shows one of two error screens before returning control to your app. Pix has its own error screen.

ScreenWhen it appearsWhat the operator should do
Payment declinedThe terminal read the card correctly, but the issuer declined the payment (33-<reason>).The decline comes from the cardholder's bank, not the terminal. Ask for another card or have the customer contact their bank.
Payment interruptedThe payment service failed or was unavailable — a host error or timeout (33-5xx).Check the transaction status before retrying, so you do not charge twice. If it keeps happening across terminals, treat it as a platform incident.

Categorize the failure

Every non-approval falls into one of these categories. The category tells you whether to handle it in your app, ask the operator to act, or contact Getnet.

CategoryWhat it meansWhat you do
Cardholder / cardThe issuer or card declined the operation.Ask for another card or have the customer contact their bank. Not a terminal or app fault.
Transient — retryA temporary condition.Wait a few seconds and retry. After a timeout, check the transaction first.
Duplicate / in progressThe transaction may already be complete or canceled.Check the printed receipt or query the payment before retrying. Do not retry blindly.
Reference not foundThe paymentId or reference does not match a transaction.Confirm the paymentId and the environment used in the refund or query.
Merchant / product configurationThe merchant, product, card brand, or terminal is not enabled for this operation.Collect the terminal code and merchant ID and contact Getnet.
AuthenticationThe terminal could not authenticate with the gateway.Confirm the environment and that you configured valid credentials.
Integration / requestValidation rejected the request, or the request was malformed.A software issue — capture the result payload and fix the integration.
Platform / systemA server-side failure.Retry once after a short wait. If it persists or affects several terminals, treat it as a platform incident.

Common scenarios

Each scenario states the symptom, its likely cause, and the fix.

Warm-up fails and the SDK never becomes ready

The SDK reports Failure(cause) through setOnWarmUpStatus, or an operation never starts.
Cause. Warm-up loads the terminal configuration and authenticates with the payment service. It fails on a missing network connection, wrong credentials, or an unregistered terminal.
Solution
  1. Check the terminal's Wi-Fi or mobile data.
  2. Inspect the warm-up error code. -1 to -5 are network conditions — retry. 401 means the clientId / clientSecret or the environment is wrong. 404 means the terminal is not registered for this configuration.
  3. To recover, call ApoloSdk.shutdown(), then configure and build() again.
  4. If a 401, 404, or 422 persists, confirm the credentials, terminalCode, and environment with Getnet.

See the warm-up codes in Error codes reference.

A payment is declined

The terminal reads the card normally, but the result is 33-<reason> and the "Payment declined" screen appears.
Cause. The issuer declined the authorization — for example, insufficient funds, a blocked card, or an expired card. This is a cardholder decision, not a terminal fault.
Solution
  1. Ask the customer for another card, or have them contact their bank.
  2. Escalate only if a card the customer says is valid fails on several terminals.

"Payment interrupted" — service error

The "Payment interrupted" screen appears with a 33-5xx code (for example, 33-500, 33-503, 33-504).
Cause. The payment service failed or was temporarily unavailable — a server-side or timeout condition.
Solution
  1. Do not retry immediately.
  2. Query the transaction by paymentId to confirm whether it went through.
  3. If it did not, retry once after a short wait.
  4. If it persists or affects several terminals, treat it as a platform incident and contact Getnet.

The card will not read

The terminal repeats "insert, tap, or swipe", or contactless fails.

Cause. A contactless or chip read failed. This is usually a normal fallback, not an error.
Solution
  1. Ask the customer to insert the chip. If the chip fails, ask them to swipe the magnetic stripe.
  2. If the terminal detects several cards at once, ask the customer to present one card, away from other cards or a wallet.
  3. If a specific card fails every method, ask for another card.

Timeout — you do not know if the customer was charged

The result is a timeout (33-504) or the operation ends without a clear outcome.
Cause. The response did not arrive within the timeout window, so the outcome is unknown — the charge may or may not have completed.
Solution
  1. Do not start a new sale for the same amount yet.
  2. Query the transaction by paymentId to confirm whether it was authorized.
  3. Only start a new sale after you confirm the first one did not go through.

A refund or cancellation fails with "not found"

The refund returns a 33-404 with a "not found" message.
Cause. The paymentId or the environment used for the refund does not match the original transaction. A wrong reference is the most common cause.
Solution
  1. Confirm the paymentId of the original transaction.
  2. Confirm you are running in the same environment where you made the sale.
  3. Retry the refund with the corrected reference.

The transaction is reported as duplicate or already exists

The result indicates the transaction is already in progress, already done, or already canceled.

Cause. The operation already completed, or it is still processing.
Solution
  1. Check the printed receipt or query the payment before acting.
  2. Do not repeat the operation until you confirm its real state.

Before you contact Getnet

Some failures need Getnet support: configuration, authentication, a persistent 5xx, a locked terminal, or an internal EMV error. Collect this information before you contact them, so support can locate the transaction and reproduce the issue.
CollectDetail
Result codeThe full TransactionResult.result (for example, 33-503, 1-21) and the on-screen message.
error_code / reason_codeFor host errors, the error_code and reason_code from the response payload (details[]).
paymentIdThe paymentId (and orderId, if any) of the affected transaction.
TerminalThe terminal serial number and the configured terminalCode.
EnvironmentPre-production, homologation, or production — which build the device runs.
Date and timeThe date, time, and time zone of the event.
ScopeOne card or terminal versus several — an isolated case or a widespread one.
Steps to reproduceAmount, payment method, card brand, and what the operator did.

Next steps

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Troubleshooting