# Delegate What everyone should know * A delegate contract is a mechanism for extending the default SNOWPayoutRedemptionPaymentTerminal functionality for a treasury. * Pay delegates contain a custom didPay(...) hook that executes after all of the default protocol pay logic in the terminal contract has been properly performed. A variety of contextual information is supplied to the hook through the SNOWDidPayData data structure. * Redemption delegates provide a custom didRedeem(...) hook that executes after the default protocol redeem logic in the terminal contract has been successfully completed. A variety of contextual information is supplied to the hook through the SNOWDidRedeemData data structure. Redemption delegates provide a custom didRedeem(...) hook that executes after the default protocol redeem logic in the terminal contract has been successfully completed. A variety of contextual information is supplied to the hook through the SNOWDidRedeemData data structure. * Each ISNOWPaymentTerminal branch might use delegates in a unique manner. #### What you should know if you're constructing * ISNOWPayDelegates and ISNOWRedemptionDelegates are both sorts of delegates. Any contract adhering to these interfaces may be used as a delegate in the financing cycles of a project. * The dataSource of the financing cycle should specify which delegated contracts to utilize. * didPay(...) is invoked in SNOWPayoutRedemptionPaymentTerminal. pay(...), and didRedeem(...) is invoked in SNOWPayoutRedemptionPaymentTerminal.redeemTokensOf(..). (...). * The redemption delegate hook is called prior to the distribution of monies. --- # 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://snowconedao.gitbook.io/snowconedao/learn/glossary/delegate.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.