SAP Cloud Integration provides a web-based, graphical editor as the primary tool for creating, configuring, and manipulating integration flows. This editor features a design canvas where developers can visually model the integration process. It includes a palette of pre-defined integration steps (like adapters, routers, and converters) that can be dragged onto the canvas and connected to define the message processing logic. This visual approach simplifies the design, understanding, and maintenance of integration scenarios, making it accessible without requiring extensive coding for the overall structure.

A. A code editor is used for specific tasks within a flow, like writing Groovy scripts, but not for manipulating the overall flow structure.

C. A command-line editor is not a standard tool provided within the SAP Integration Suite for designing or editing integration flows.

1. SAP Help Portal

SAP Integration Suite: In the section "The Integration Flow Editor

" the documentation states

"The integration flow editor is a graphical modeling tool that you can use to define the flow of messages in an integration scenario." This confirms the use of a graphical editor. (Source: SAP Help Portal

SAP Integration Suite > Developing Integration Content with SAP Cloud Integration > The Integration Flow Editor).

2. SAP Help Portal

SAP Integration Suite: The guide "Define the Integration Flow" provides a tutorial on building an integration flow. Step 3 explicitly instructs the user to "Model the integration flow on the canvas

" demonstrating the graphical nature of the editor. (Source: SAP Help Portal

SAP Integration Suite > Getting Started with Integration Flow Development > Define the Integration Flow).

The Start Message event is used to model the beginning of an integration process that is triggered by an incoming message from a sender system. When an integration flow is configured with a sender SOAP adapter, the Start Message event is essential for creating the web service endpoint. Once the integration flow is deployed, this endpoint becomes active, allowing an external client to send a SOAP request at any time, thereby running the integration flow directly.

A. End Event: This event terminates a specific path within the integration process. It does not initiate the flow or receive incoming messages.

B. End Message: This event is used at the conclusion of a process to send a response message back to the original sender. It does not trigger the start of the flow.

C. Start Event: This is a generic, non-specific start event. It is typically used to begin a local integration process that is called internally by another process, not to expose an external endpoint for a SOAP adapter.

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1. SAP Help Portal

SAP Integration Suite Documentation: In the section on modeling basics

the "Start Message" event is described as the trigger for a process initiated by a sender. It states

"A message start event is triggered by a message from a sender. You connect a message start event to a sender participant through a channel." This directly links the event to an incoming message via an adapter like SOAP.

Source: SAP Help Portal

Cloud Integration -> Creating Integration Content -> Get Started with Integration Flow Design -> Define the Integration Flow Model -> Events -> Start Message Event.

2. SAP Help Portal

SAP Integration Suite Documentation: The documentation for configuring sender adapters explicitly shows the connection from a sender system to a Start Message event. For the SOAP adapter

this configuration is what exposes the integration flow as a web service.

Source: SAP Help Portal

Cloud Integration -> Creating Integration Content -> Configure Adapters -> Configure the Sender SOAP Adapter. The diagrams and configuration steps illustrate the adapter's connection to the Start Message event to receive requests.

In the context of SAP API Management, a target endpoint is the backend service that an API proxy invokes after processing a request from a client. The target endpoint represents the actual service provider. This can be the original backend service, defined by its URL, which is exposed by an API provider (A). The core configuration of a target endpoint is the URL of the original API (E) that the proxy will call. Additionally, in a scenario known as proxy chaining, one API proxy (D) can act as a local target endpoint for another, allowing for the composition of services.

B. API consumer: An API consumer is the client application that initiates the call to the API proxy, not the backend service that the proxy calls.

C. Resources: Resources are the specific paths (e.g., /orders, /products) within an API's URL, not the backend service endpoint itself.

1. SAP Help Portal

SAP Integration Suite

Understanding API Proxies: "An API proxy is an intermediary for a backend service that you want to expose... The API proxy then redirects the request to the backend service. The backend service is also referred to as a target endpoint." This supports that the target endpoint is the backend service provided by the API provider (A).

2. SAP Help Portal

SAP Integration Suite

Target Endpoint: "A TargetEndpoint configuration configures the URL for the backend service and defines how an API proxy connects to that backend service." This directly confirms that the URL of the original API (E) is a key component of the target endpoint.

3. SAP Help Portal

SAP Integration Suite

Chaining API Proxies: "API proxy chaining is invoking one API proxy from another. You can implement proxy chaining when you have an API proxy that needs to call another API proxy... To chain proxies

you use a local target connection to make a request from one proxy to another..." This confirms that an API proxy (D) can be a target endpoint.

The Hypertext Transfer Protocol (HTTP) 2xx class of status codes indicates that a client's request was successfully received, understood, and accepted. The 200 OK status code is the standard, most common response for successful HTTP requests. In the context of an API call made via an SAP API provider, a 200 OK response signifies that the API endpoint successfully processed the request and is returning the expected payload or acknowledgment.

A. 203: This is a success code (2xx), but it specifically means "Non-Authoritative Information," indicating the response is from a proxy, not the origin server. 200 is the direct and standard success code.

B. 403: This is a client error code (4xx) for "Forbidden." It means the server understood the request but refuses to authorize it, typically due to insufficient permissions.

D. 401: This is a client error code (4xx) for "Unauthorized." It indicates that the request lacks valid authentication credentials for the target resource.

1. Internet Engineering Task Force (IETF) RFC 7231

Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content

Section 6.3.1

"200 OK". This document defines the 200 OK status code as the standard response for a successful request. It is the authoritative source for HTTP standards

which SAP's products adhere to.

2. SAP Help Portal

SAP Integration Suite

API Management > Monitoring APIs and Resources > API Analytics. The monitoring dashboards categorize HTTP response codes into classes (2xx

4xx

5xx). The 2xx codes are consistently grouped to represent successful calls

confirming the standard interpretation within the SAP ecosystem.

3. SAP Help Portal

SAP Integration Suite

Cloud Integration > Defining an Integration Flow > Configure the HTTP Receiver Adapter. The documentation for handling responses from external systems specifies that a successful call typically returns an HTTP status code in the 2xx range

with 200 being the primary example.

Event-driven architecture is an architectural pattern designed for asynchronous communication. In this model, services communicate by producing and consuming events. An event is a notification that a significant change of state has occurred. The service that generates the event (the producer) sends it to an event broker without knowing which services (consumers) will receive it. Consumers subscribe to the events they are interested in and process them independently. This decouples the partners, allowing them to operate asynchronously, which is ideal for exchanging notifications without waiting for a direct response.

B. Hexagonal design: This pattern, also known as Ports and Adapters, focuses on decoupling the application's core logic from external concerns like databases or UIs, not on the asynchronous communication model itself.

C. Serverless design: This is a cloud execution model where the cloud provider manages the server infrastructure. While often used with event-driven systems, it describes how code is run, not the communication pattern.

D. Request-driven design: This describes a synchronous request-response pattern where a client sends a request and waits for a reply, which is the opposite of the asynchronous requirement.

1. SAP Help Portal

SAP Integration Suite

What Is SAP Event Mesh?: "SAP Event Mesh is a fully managed cloud service that allows applications to communicate through asynchronous events. ... Build event-driven architectures to extend your solution and create a responsive and interconnected application landscape." This document directly links event-driven architecture with asynchronous communication for notifications (events).

2. SAP Help Portal

Cloud Integration

Asynchronous Message Processing: "In an asynchronous scenario

the sender sends a message to the receiver and does not wait for a response message. The sender can continue with its own processing after it has sent the message." This defines the core asynchronous principle that event-driven design implements.

3. SAP Discovery Center

SAP Integration Suite

Service Description: Under the capabilities of SAP Integration Suite

it lists "Event-driven integration" as a key feature. The description states: "Connect applications

services

and systems across different landscapes with events. React to business events in real time and create responsive

event-driven applications." This confirms that event-driven design is the sanctioned SAP approach for this use case.