SAP Certified Development Associate Certification C_CPI_15 Book

OData uses HTTP, AtomPub, and JSON as its core functionalities. OData is an open protocol that allows the creation and consumption of queryable and interoperable RESTful APIs in a simple and standard way. OData builds on HTTP as the application protocol for transferring data between clients and servers. OData uses AtomPub as one of the formats for representing data feeds and entries in XML. OData also uses JSON as another format for representing data feeds and entries in a lightweight and human-readable way. References: Introducing OData - SAP Learning, OData Overview | OData - The Best Way to REST

To access the payload in a Groovy script, you must use the message object and call the getBody() method on it. The message object represents the current message that is being processed in the integration flow. It has methods to get and set the message body, headers, properties, and attachments. The getBody() method returns the message body as an object of the specified type, such as java.lang.String, java.io.InputStream, or org.w3c.dom.Document. References: General Scripting Guidelines | SAP Help Portal, Message | SAP Help Portal

To save a customer ID in a data store, you can use the WRITE operation. The WRITE operation allows you to store a value in a data store entry with a specified key. You can use the WRITE operation to create or update a data store entry with a customer ID as the key and a value as the payload. References:  Modernize Integration with SAP Integration Suite | openSAP

To connect an SAP backend system through the Cloud Connector with an API provider, you must use the on-premise connection type. The Cloud Connector acts as a link between SAP Integration Suite and on-premise systems, enabling secure and controlled access to the backend resources. The on-premise connection type allows you to specify the internal host and port of the backend system, as well as the virtual host and port that will be exposed to SAP Integration Suite. You can also define access control rules and protocols for the on-premise connection. References: Part 2: Connect to on-premise APIs from SAP Cloud Platform API Management Cloud Foundry Environment | SAP Blogs, How to configure SAP Cloud Connector & Create API using SCP API Management | SAP Blogs