We successfully implemented automated ECO approval workflows using Windchill REST API at our manufacturing facility. Previously, our engineering change process involved manual routing through multiple departments taking 8-12 days on average. We built a middleware layer that monitors ECO creation and automatically triggers approval workflows based on predefined business rules.
The solution integrates with our ERP system and leverages REST API endpoints to manage approval routing dynamically. Key implementation included automated stakeholder identification, parallel approval paths for non-conflicting departments, and comprehensive audit logging for ISO compliance requirements. After three months in production, we’ve reduced average approval cycle time by 30% while maintaining full traceability for regulatory audits.
What challenges did you face with REST API authentication and session management? We’re planning a similar project and concerned about maintaining reliable API connections for continuous polling operations.
How did you approach the audit logging for compliance? Our company is ISO certified and we need detailed traceability for all approval decisions. Does your solution capture the automated routing decisions with sufficient detail for auditors?
We used PTC’s standard REST API for change management objects. The middleware is a Java-based service running on our integration server. Primary endpoints include /ChangeOrders for ECO retrieval and /Workflows for approval routing. We chose a custom middleware approach over ESB to maintain direct control over business logic and reduce licensing costs. The service polls for new ECOs every 5 minutes and applies rule-based routing logic stored in our configuration database.