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This blog post describes the Two-Tier scenario of Equipment calibration between headquarters and subsidiary which run on two different instances of SAP. This scenario is beneficial in case of calibration, where the test equipment is owned and is sent to Headquarters for calibration and is leased/rented out to subsidiary. Subsidiaries are expected to gain better visibility on the Calibration results generated at Headquarter end and vice versa. This scenario supports organizations running on Two-Tier setup to have better coverage on Calibration process between Tier 1 and Tier 2 systems.


Business Enterprises implemented with Two-Tier scenario involving Equipment calibration and setup wherein the subsidiary runs on SAP S/4HANA Cloud, public edition acting as Tier 1 and the Headquarter running on any deployments such as SAP S/4HANA Cloud, private edition, SAP S/4HANA, or SAP ECC or any other ERP system acting as Tier 2 which can cater to calibration of Leased/Rented Test equipment.

SAP S/4HANA Cloud, public edition system plans the calibration schedule for the test equipment and notifies the Headquarter whenever the equipment is due for calibration. The Headquarter on the other hand calibrates the equipment, captures the values for Master Inspection characteristics and generates the calibration label and certificate. Headquarter can share the certificate for calibration and the in the subsidiary SAP S/4HANA Cloud, public edition system this quality certificate can be attached to the maintenance order created for calibration. This is how the process concludes.

Two-Tier Solution:

To achieve the above s requirement, SAP’s Two -Tier Solution provides direct integration between SAP S/4HANA Cloud, public edition system at the subsidiary and SAP S/4HANA / SAP S/4HANA Cloud public edition / SAP ECC/other ERP system at the Headquarter.

Let’s see the process flow,

Equipment Calibration in Two-Tier ERP



  • For the Leased/Rented Test Equipment in Tier 2 system, Maintenance planner will create the Time-based Maintenance plan with required details linking the equipment and task list and schedule accordingly.

  • Based on the schedule the maintenance Plan will generate notification for the due calibration tasks.

  • This due notification will create an event. This event is sent to Event Mesh and is replicated to Tier 1. The data replication is done by capturing the event using an AMQP adapter in an integration flow and then replicating the notification to Tier 1 via an OData service to create the notification.

  • A maintenance order with activity type as calibration is created.

  • Once Headquarters provide the quality certificate, it is attached to the maintenance order.



Let’s see here the activities at Tier 1 system which is notified of the equipment that is due for calibration.

  • Tier 1 system receives the notification that the test equipment is due for calibration.

  • Now, a calibration order is created by the Headquarters to carry out the calibration process for the test equipment. A designated task list is added at the order creation.

  • Inspection lot is generated at the order release and Result recording, usage decision is carried out on the inspection lot.

  • Subsequently calibration label and certificate are generated.

  • In case of failure on the result recording the test, equipment is recalibrated.

  • Headquarters also provides the calibration certificate.

This way we can cater to calibration services provided by Headquarters for the Leased/Rented test equipment with Two-Tier scenario.