C_CPI Integration Suite Development Practice Question
An integration developer is configuring a Message Mapping step in SAP Cloud Integration. The source message contains a repeating node with multiple occurrences of an employee ID and name. The target structure requires a single concatenated string of all employee names separated by commas. Which mapping function should the developer use to achieve this?
⚠ Common exam trap
The trap here is assuming that 'concat' can combine values from a repeating node, when it only works on individual strings, leading to an incorrect mapping that fails to aggregate all occurrences.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the 'join' function with a comma as the delimiter on the repeating node.
To concatenate multiple occurrences of a repeating node into a single delimited string, the 'join' function is designed for this purpose. It takes a context and a delimiter, producing a single string with all values separated by the delimiter. Other functions like 'concat', 'split', or 'substring' do not perform this aggregation on repeating nodes, making 'join' the correct choice.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use the 'join' function with a comma as the delimiter on the repeating node.
Why this is correct
The 'join' function in SAP Cloud Integration's message mapping takes a context (repeating node) and concatenates its values into a single string using a specified delimiter. Applying it to the employee name node with a comma delimiter produces the required comma-separated list of all employee names, satisfying the target structure.
- ✗
Use the 'substring' function to extract each name and then combine them.
Why it's wrong here
The 'substring' function extracts a portion of a string based on position. It does not handle repeating nodes or concatenation. Manually extracting each name with 'substring' would require knowing the exact positions, which is error-prone and not feasible for a dynamic list of employees.
- ✗
Use the 'concat' function to combine the employee names directly.
Why it's wrong here
The 'concat' function concatenates two or more individual strings without a delimiter. It does not operate on a repeating node to produce a single string from multiple occurrences. To concatenate all names from a repeating node, you would need to manually extract each occurrence, which is impractical and not the intended use of 'concat'.
- ✗
Use the 'split' function to break the repeating node into individual strings and then reassemble.
Why it's wrong here
The 'split' function does the opposite: it splits a string into multiple parts based on a delimiter. It does not combine multiple values into one. Using 'split' on the repeating node would not yield a concatenated string; it would fragment data further, which is not the goal here.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official SAP exam blueprint
This C_CPI practice question is part of Courseiva's free SAP certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the C_CPI exam.