# Additional parameters When interacting with the payment method, the additional\_data field is uploaded. Such field contains dynamic parameters of the merchant that will be saved in the payment system and provided to the merchant in webhook-e with the payment status and in the request of transaction status. {% hint style="warning" %} The additional\_data field is not involved in signature creating {% endhint %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.tarlanpayments.kz/eng/acquiring/additional-parameters.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.