Workflow of the Catalog Connectivity Service API

Workflow of the Catalog Connectivity Service API involves the following high-level steps.

Workflow to Initialize Handshake for Punching in to Guided Buying

To initialize handshake for punching in to guided buying (through the connectivity service) from an SAP S/4HANA system using the catalog connectivity service API involves the following high-level steps:

  1. A user, in the Plant Maintenance module in the SAP S/4HANA system, in the process of adding items to the work order selects to add items from guided buying.

  2. The client application sends a request for an initial handshake as a backend call to guided buying through the connectivity service.

  3. The connectivity service persists the incoming data, generates a SessionId and a SessionTransmissionId, and returns the values as an XML.

    The SessionId is used by the SAP S/4HANA system in the request to the connectivity service to launch the guided buying catalog, and the SessionTransmissionId in the request to retrieve the shopping cart contents from guided buying.

  4. The SAP S/4HANA system sends a request to the connectivity service with the SessionId to launch the catalog in guided buying.

  5. The connectivity service processes the request and redirects the user to the guided buying landing page after authentication.

  6. The user searches the guided buying catalog for the required items, adds them to the cart and clicks Check out to return to the SAP S/4HANA system.

Workflow to Retrieve the Selected Items From Guided Buying

Retrieving the selected items from guided buying using catalog connectivity service API involves the following high-level steps:

  1. When the user adds the required items to the cart in guided buying and clicks Check out to return to the SAP S/4HANA system, guided buying sends the ShoppingCartID parameter value to the connectivity service.

  2. The connectivity service persists the ShoppingCartID corresponding to the SessionId and notifies the SAP S/4HANA system.

  3. The client application sends a backend call to the connectivity service to retrieve the items from guided buying.

  4. The connectivity service processes the request and retrieves the shopping cart data from guided buying and sends it to theSAP S/4HANA system.