SAP CPI Hands on Exercise - 1

Overview

In SAP CPI Hands On – Exercise 1, we will focus on understanding and implementing the Content Modifier and Message Converter steps in SAP Cloud Platform Integration (CPI). These components play a vital role in message processing, transformation, and routing within an integration flow (iFlow).

Content Modifier & Converter in SAP CPI

In SAP CPI (Cloud Platform Integration), a Content Modifier is a crucial integration flow step used to dynamically change message content, headers, and properties (like adding data, transforming formats, or setting values) for message routing or system integration, allowing for flexible message manipulation within the IFLOW by editing headers, properties, and the body itself. 
A content modifier shall help you to modify the incoming message or payload, by changing its content that are involved in Message Processing (i.e., Message Header, Message Exchange Property, or Message Body).


Now let us create 2 different Content modifiers as per below :

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HTTPS Adapter:

Content Modifier -1

Add property parameter to be used in main content modifier

WRITE Variables:

Add two variable one is Global and local variable
GlobalUser1—-//User2———-Mark as Global Scope
LocalUser1—-//User1

Content Modifier 2:

Variable created by IFLOW can be seen in operation tab

Number Range created manually in Operation tab

Add Custom body in body section of content modifier

Test from POSTMAN with below Input

Body Section is modified:

Header section is added with parameter:

So, in response header you can see all parameters being created.

Now let us create a different IFLOW with content modifier and converter as per below where we will modify the actual data payload. Here we will manipulate and format data within an Integration Flow(IFlow).

Converters are specialized message transformers used to change the format of the message payload. Standard converters include: 

  • XML to JSON Converter: Transforms XML data into JSON format.
  • JSON to XML Converter: Converts a JSON payload into XML, often required before calling OData services.
  • XML to CSV Converter: Transforms a simple XML structure into a Comma Separated Values (CSV) file. Note that it generally does not support complex, deeply nested XML structures.
  • CSV to XML Converter: Converts a CSV file into an XML format for further processing.
  • EDI to XML / XML to EDI: Used in B2B scenarios to convert Electronic Data Interchange (EDI) formats to XML and vice versa.
Content Modifier vs Converters Comparison
Feature Content ModifierConverters
Primary UseModify headers, properties, and body content.Change data format (e.g., XML to JSON).
ScopeManipulates metadata and payload.Focuses strictly on payload transformation.
Common Use CaseSetting a dynamic endpoint URL or storing a value for a later step.Converting a JSON response from a REST API to XML for mapping.

Input payload in CSV/text format:-

BookID,Count
A1000,40
A2000,67
A3000,90
A4000,32

We will not use any adapter here, instead will use simulation to simulate different steps.

Content modifier 1:

CSV to XML Converter

XML schema: add xsd for xml

Path: provide path till field values

Simulation o/p:

XML to JSON Converter

Simulation o/p:

JSON to XML Converter

Simulation o/p:

XML to CSV Converter

Simulation o/p:

If you found this article helpful, we’d love to hear from you! Share your thoughts, questions, or experiences in the comments below—your feedback is always welcome and helps us craft even more valuable content for your SAP CPI. Stay tuned for the next part in the series, where we’ll continue exploring essential tools and techniques to level up your SAP development skills.

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