When setting up integrations with external systems, how many communication arrangements should you create?
When setting up integrations with external systems, you should create one communication arrangement for each communication scenario you are implementing. A communication arrangement is a configuration that defines how your system communicates with an external system using a specific communication scenario. A communication scenario is a predefined integration content that describes the inbound and outbound communication between your system and an external system using a specific communication protocol and interface. Reference: https://help.sap.com/viewer/product/SAP_S4HANA_CLOUD/latest/en-US