Automate service booking & payment with WhatsApp and Xendit

Disclaimer: This workflow uses community nodes and needs the self-hosted version of n8n. Code for UI Form is accessible here The bykhaisa workflow takes makeup service bookings from start to paid: it captures customer details via webhook, calculates pricing with add-ons and payment types, generates payment invoices with Xendit, and sends personalized WhatsApp booking confirmations. This combination of n8n, GoWhatsApp API, and Xendit cuts manual work and speeds up payment collection, saving time and keeping clients happy. Last updated: September 2026. Why Use bykhaisa? Save Time: Automate booking and payment instead of hours of manual data entry. Simplify Payments: Generate Xendit invoices in

Help me set up the n8n workflow "Automate service booking & payment with WhatsApp and Xendit" (https://n8n.io/workflows/6474). It uses: HTTP Request, Code. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.