# Apps on Saleschat ## What are External Apps? External Apps let you send one-way messages to your leads through SalesChat from any external system — your CRM, marketing automation platform, notification service, or custom backend. **Use cases:** * Fyno / CleverTap / WebEngage sending campaign messages through SalesChat * Your CRM triggering a follow-up template when a deal stage changes * A custom backend sending appointment reminders or payment confirmations **What External Apps can do:** * Unified inbox — Messages sent from Fyno, CleverTap, or any external platform appear in the same agent inbox alongside regular conversations. * Instant lead response — When a customer replies to a campaign or notification message, your sales agent sees it immediately and can respond in real-time. No switching between tools. * Consistent customer experience — Whether a message originates from your CRM, notification platform, or SalesChat itself, the customer always sees it coming from your single WhatsApp business number. * Audit trail — Every message sent through external apps is tracked with delivery status. * The message appears in the chatroom as sent by the app's bot user, so agents can see it in context alongside their own messages. > **Do I need to manage contact and chatroom?** \ > No. Contact and Chatroom are automatically resolved internally by Saleschat. --- # 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.saleschat.pro/principles/apps-on-saleschat.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.