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Use Sandbox simulations

Use Sandbox simulations to test your integration before going live. You can simulate different checkout scenarios such as payment declines and cart abandonment by selecting specific simulated payment methods during Sandbox checkout. You can also intentionally trigger different API responses by adding simulation strings to your request header.

Note: if you use both simulated payment methods and simulation strings during the same checkout, simulation strings will override any behavior triggered by using a simulated payment method.


Using simulated payment methods

Sandbox test buyer accounts come pre-configured with simulated payment methods. Select a payment method marked with * during Sandbox checkout to simulate a specific payment scenario. You will get an error if the simulation prerequisite has not been met.

Card number
Payment scenario
Prerequisite
...1111
...0005
...4444
...9424
...0000
Happy case. On the checkoutResultReturnUrl page you will get:

Charge in Authorized state if paymentIntent was set to Authorize

ChargePermission in Chargeable state if paymentIntent was set to Confirm
-
...3064
Checkout Session in Canceled state with BuyerCanceled reason code after the buyer returns to checkoutResultReturnUrl
-
...3434
Checkout Session in Canceled state with Declined reason code after the buyer returns to checkoutResultReturnUrl
-
...0701
Charge will be in AuthorizeInitiated state after the buyer returns to checkoutResultReturnUrl. It will move to Authorized state after 30 seconds based on paymentIntent
You must set paymentIntent to Authorize, and canHandlePendingAuthorization to true on the Checkout Session or using this payment method will result in an error

...4354
Charge will be in AuthorizeInitiated state, when checkoutResultReturnUrl is visited. It will move to Declined state after 30 seconds with reason code HardDeclined
You must set paymentIntent to Authorize, and canHandlePendingAuthorization to true on the Checkout Session or using this payment method will result in an error


Using simulation strings

Add x-amz-pay-simulation-code request header to your API calls to simulate different behaviors. For example, “x-amz-pay-simulation-code = ”BuyerCanceled”. Note that you should not include x-amz-pay-simulation-code request header in the header signature.

Checkout Session

State
Reason code
Simulation code
How to simulate
Open
-
-
Create Checkout Session
Completed
-
-
Redirect Buyer to amazonPayRedirectUrl
Canceled
Expired
-
Checkout Session will expire after 24 hours in Open state
Canceled
BuyerCanceled
BuyerCanceled
Specify the simulation code in the header of Get Checkout Session or Update Checkout Session and redirect the buyer to amazonPayRedirectUrl

Note that simulation codes are not persisted. You must set the simulation code in the request, immediately preceding the redirect
Canceled
AmazonCanceled
AmazonCanceled
Specify the simulation code in the header of Get Checkout Session, or Update Checkout Session and redirect the buyer to amazonPayRedirectUrl

Note that simulation codes are not persisted. You must set the simulation code in the request, immediately preceding the redirect
Canceled
Declined
Declined
Specify the simulation code in the header of Get Checkout Session or Update Checkout Session, and redirect the buyer to amazonPayRedirectUrl

Note that simulation codes are not persisted. You must set the simulation code in the request immediately preceding the redirect

Charge

State
Reason code
Simulation code
How to simulate
AuthorizationInitiated
-
AuthorizationInitiated
Specify the simulation code in the header of Get Checkout Session, or Update Checkout Session with canHandlePendingAuthorization set to true. Redirect the buyer to amazonPayRedirectUrl

Charge will be in the AuthorizationInitiated state for 30 seconds, and then move to Authorized or Captured state, based on PaymentIntent

Note that simulation codes are not persisted. You must set the simulation code in the request, immediately preceding the redirect
Authorized
-
-
Update Checkout Session with paymentIntent set to Authorize. Redirect the buyer to amazonPayRedirectUrl
Authorized
-
AuthorizationInitiated
Specify the simulation code in the header of Get Checkout Session, or Update Checkout Session with canHandlePendingAuthorization set to true, and paymentIntent set to Authorize. Redirect the buyer to amazonPayRedirectUrl

Charge will be in the AuthorizationInitiated state for 30 seconds, and then move to Authorized

Note that simulation codes are not persisted. You must set the simulation code in the request, immediately preceding the redirect
Authorized
-
-
Create Charge with canHandlePendingAuthorization set to false, and captureNow set to false
Captured
-
-
Create Charge with canHandlePendingAuthorization set to false, and captureNow set to true
CaptureInitiated
-
CaptureInitiated
Specify the simulation code in the header of Capture

Charge will be in CaptureInitiated state for 30 seconds, and then it will move to Captured state
Declined
SoftDeclined
PendingSoftDeclined
Specify the simulation code in the header of Get Checkout Session, Create Charge, or Update Checkout Session with canHandlePendingAuthorization set to true. Redirect the buyer to amazonPayRedirectUrl

Charge will be in the AuthorizationInitiated state for 30 seconds, and then move to Declined state with reason code SoftDeclined

Note that simulation codes are not persisted. You must set the simulation code in the request, immediately preceding the redirect
Declined
HardDeclined
PendingHardDeclined
Specify the simulation code in the header of Get Checkout Session, or Update Checkout Session with canHandlePendingAuthorization set to true. Redirect the buyer to amazonPayRedirectUrl

Charge will be in the AuthorizationInitiated state for 30 seconds, and then move to Declined state with reason code HardDeclined

Note that simulation codes are not persisted. You must set the simulation code in the request, immediately preceding the redirect
Declined
AmazonRejected
PendingAmazonRejected
Specify the simulation code in the header of Get Checkout Session, or Update Checkout Session with canHandlePendingAuthorization set to true. Redirect the buyer to amazonPayRedirectUrl

Charge will be in the AuthorizationInitiated state for 30 seconds, and then move to Declined state with reason code AmazonRejected

Note that simulation codes are not persisted. You must set the simulation code in the request, immediately preceding the redirect
Declined
AmazonRejected
AmazonRejected
Specify the simulation code in the header of Create Charge or Capture

Charge will be in CaptureInitiated state for 30 seconds, and then it will move to Declined state
Declined
SoftDeclined
SoftDeclined
Specify the simulation code in the header of Create Charge
Declined
HardDeclined
HardDeclined
Specify the simulation code in the header of Create Charge
Declined
TransactionTimedOut
TransactionTimedOut
Specify the simulation code in the header of Create Charge
Canceled
MerchantCanceled
-
Cancel Charge

Charge Permission

State
Reason code
Simulation code
How to simulate
Chargeable
-
-
Complete checkout with a valid card
Closed
MerchantClosed
-
Cancel Charge Permission
Closed
AmazonClosed
AmazonClosed
Specify the simulation code in the header of Cancel Charge Permission. `CancelPendingCharges` must be set to false

Refund

State
Reason code
Simulation code
How to simulate
RefundInitiated
-
-
Create Refund. Refund will be in the RefundInitiated state for 30 seconds before moving to Refunded state
Refunded
-
-
Create Refund. Refund will be in the RefundInitiated state for 30 seconds before moving to Refunded state
Declined
AmazonRejected
AmazonRejected
Specify the simulation code in the header of Create Refund