@quetzi I was able to start the process.
Changes: For expressions use ‘#’ instead of '$'
<bpmn:sequenceFlow id="Flow_0ynzqj4" name=">= 1000 EUR" sourceRef="Gateway_1t818pw" targetRef="Activity_1bna7sl">
<bpmn:conditionExpression xsi:type="bpmn:tFormalExpression">#{amount >= 1000}</bpmn:conditionExpression>
</bpmn:sequenceFlow>
<bpmn:sequenceFlow id="Flow_1183edw" name="< 1000 €" sourceRef="Gateway_1t818pw" targetRef="ID">
<bpmn:conditionExpression xsi:type="bpmn:tFormalExpression">#{amount < 1000}</bpmn:conditionExpression>
</bpmn:sequenceFlow>
Deploy this bpmn file and test: payment.bpmn (7.2 KB)
