Siemens Opcenter APS is an advanced planning and scheduling application for manufacturing. It produces production schedules and capacity plans over different time horizons, from detailed sequencing to long-term planning, and is designed to integrate with ERP and manufacturing systems. The product was formerly known as Preactor APS and forms part of Siemens' Opcenter manufacturing operations portfolio. It can be installed out of the box and can run as a standalone application for planning and scheduling.
Siemens AG has its headquarters in Munich, Germany. Opcenter APS is delivered as installed software, so planning data can remain on the customer's own infrastructure. The Siemens portfolio page does not describe a hosted version of APS, and the product is distinct from the cloud-based Opcenter X. For a European manufacturer this makes APS a self-hosted option from a European vendor, subject to the licence and maintenance terms agreed with Siemens. Data protection terms for any support or licence-related data flows should still be set out in the contract.