> For the complete documentation index, see [llms.txt](https://developer.paywall.one/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.paywall.one/payment-orchestration-integration-document/callback-examples/apm.md). # APM

Key	Description
`Id`	Identifier of the APM transaction
`Result`	True \| False
`ResultMessage`	Success \| Unsuccessful
`CurrencyId`	Currency of the payment See: Review
`ApmProviderId`	APM provider ID
`ApmProviderName`	APM provider name
`ApmProviderConnectionId`	APM provider connection ID
`ApmProviderConnectionName`	APM provider connection name
`Amount`	Payment amount
`UniqueCode`	Paywall unique tracking number of the payment
`MerchantUniqueCode`	Tracking number provided at the time of payment creation
`Hash`	The Hash value used to verify that the notification was sent from Paywall. It is generated using the APM Webhook Hash Key activated in the Paywall panel. The key mentioned above may vary depending on the value of the `HashKeyType` parameter. A dynamic structure should be implemented.
`HashFormat`	The format type used to generate the hash value See: Hash Formats
`HashKeyType`	The type of key used in generating the hash value See: Key Types
`CallbackAddress`	Address provided at the time of payment creation
`Date`	Date of the payment

**Web Callback:** ```html ``` **Sunucu Geri Bildirim:** ```csharp public class ApmCallbackRequestModel { public int Id { get; set; } public bool Result { get; set; } public string ResultMessage { get; set; } public short CurrencyId { get; set; } public int ApmProviderId { get; set; } public string ApmProviderName { get; set; } public int ApmProviderConnectionId { get; set; } public string ApmProviderConnectionName { get; set; } public decimal Amount { get; set; } public string UniqueCode { get; set; } public string MerchantUniqueCode { get; set; } public string Hash { get; set; } public string CallbackAddress { get; set; } public DateTime Date { get; set; } } ```