Question: I need a system that integrates with our existing frontend and backend infrastructure, and also supports webhooks and Slack integration.

Workato is a full-featured automation platform with more than 1200 pre-built connectors and accelerators. It's designed to be easy to integrate with your infrastructure and has features like AI-driven automation, end-to-end security and a scalable architecture. Workato is flexible enough to be used for a very wide range of business process automation.

Another option is Zapier, which connects to more than 7,000 apps to automate workflows. It's got AI automation, enterprise-level security and a range of pricing plans. Zapier lets you automate with custom workflows without having to write code, so it's good for startups, small businesses and large ones, too.

If you want deeper Slack integration and more advanced ticketing and customer support, check out Unthread. It converts Slack threads into tickets with priorities, assignments and service level agreements, and has a range of integrations with CRM and task manager tools. Unthread is geared for customer-facing and internal helpdesk operations, with security features and customizable workflows.