Camunda BPMN Gateway Condition – Best Practices
Camunda BPMN Gateway Condition – Best Practices (Production-Safe Guide) Gateway conditions in Camunda BPMN control how a process flows at runtime. Yet, incorrect gateway conditions are one of the top reasons for production incidents in Camunda projects. In this blog, we’ll cover best practices for writing gateway conditions , common mistakes, and how to avoid runtime failures in Camunda 7 (and Camunda 8 concepts apply too). 1️⃣ Why Gateway Conditions Break Production A gateway condition: Is evaluated at runtime Must always return a Boolean Is executed inside the process engine context A small mistake can lead to: Process instance stuck Incident in Cockpit Production outage 2️⃣ Always Return Boolean (MOST IMPORTANT RULE) ❌ Wrong condition (very common): ${orderStatus} If orderStatus = "APPROVED" , Camunda throws: condition expression returns non-Boolean ✅ Correct condition: ${orderStatus == 'APPROVED' } 👉 Gateway conditions ...