# Status Codes

## ERROR

###### The transaction must be considered as technically failed.

Possible Result Codes:

[150: Processing failed](/docs/developer/api_integration/payment_1.8/payment_api_documentation/responses/result/150/)

## FATAL

###### The transaction must be considered as technically failed.

Possible Result Codes:

[401: Transaction result error](/docs/developer/api_integration/payment_1.8/payment_api_documentation/responses/result/401/)

## OK

###### The transaction was technically successful.

Possible Result Codes:

[350: Transaction initialized](/docs/developer/api_integration/payment_1.8/payment_api_documentation/responses/result/350)

[351: Service is alive](/docs/developer/api_integration/payment_1.8/payment_api_documentation/responses/result/351)

[400: Transaction result successful](/docs/developer/api_integration/payment_1.8/payment_api_documentation/responses/result/400)

[402: Transaction result pending](/docs/developer/api_integration/payment_1.8/payment_api_documentation/responses/result/402)

[403: Payment change successful](/docs/developer/api_integration/payment_1.8/payment_api_documentation/responses/result/403)

[404: Confirmation deliver successful](/docs/developer/api_integration/payment_1.8/payment_api_documentation/responses/result/404)

[407: The request was successful](/docs/developer/api_integration/payment_1.8/payment_api_documentation/responses/result/407)

## WARNING

###### The sent operation is not allowed at the current transaction status (e.g. a return is not allowed before the item was sent).

Possible Result Codes:

[405: Transaction result undefined](/docs/developer/api_integration/payment_1.8/payment_api_documentation/responses/result/405)