# Must know-how of Reekolect - [Manage & Use Custom Attributes](https://help.reekolect.ai/product-guides-and-training/must-know-how-of-reekolect/manage-and-use-custom-attributes.md): This page contains information about the custom attributes and how you can use them in Reekolect - [Call external APIs in your chat flows](https://help.reekolect.ai/product-guides-and-training/must-know-how-of-reekolect/call-external-apis-in-your-chat-flows.md): This page contains information about how you can call external APIs in your chat flows. - [Manging team roles & Users](https://help.reekolect.ai/product-guides-and-training/must-know-how-of-reekolect/manging-team-roles-and-users.md): This page contains information on how can you can add new team members and you give them custom access permissions. - [Send WhatsApp notifications using the Reekolect APIs](https://help.reekolect.ai/product-guides-and-training/must-know-how-of-reekolect/send-whatsapp-notifications-using-the-reekolect-apis.md): This page contains the Information on how can you send WhatsApp Notifications from your platform using the Reekolect APIs --- # 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://help.reekolect.ai/product-guides-and-training/must-know-how-of-reekolect.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.