The GR/IR monitor is an SAP S/4HANA application that helps the accountants to process the cases where the goods receipts and the invoices receipts are not exactly matched and written off automatically. The processors set the statuses to purchase orders to indicate the next actions that must be taken in the context of certain purchase order. A machine learning feature of the GRIR application makes a prediction of the next status based on the history of processing. The predictions are provided by a Machine Learning (ML) service that runs on the Cloud Foundry. This communication scenario is related to the connection of the SAP S/4HANA backend and the ML service.