In SAP Integration Suite's content-based routing, conditions are evaluated using expressions. For string data types, the most fundamental and frequently used operations involve checking for specific values or their existence.

1. Equals (==) and Not Equals (!=) are the primary comparison operators used to route messages based on an exact match or non-match of a string value (e.g., a country code, document type, or status).

2. Not null or empty is a critical validation check to ensure a field exists and contains data before further processing, preventing errors. This is a foundational step in robust routing logic.

These three operations represent the most common and essential routing conditions for string data.

C. Greater than or equal: While technically supported for lexicographical (alphabetical) comparison, it is a less common use case for string-based routing compared to direct equality or existence checks.

D. Substring: This operation (supported via the contains operator) is used for pattern matching within a string. It is a more specialized routing requirement, not as fundamental as equality or existence.

1. SAP Help Portal

SAP Integration Suite

"Define a Router": This document outlines the configuration of the content-based router. The examples provided primarily feature the Equals (=) operator for routing decisions

highlighting its fundamental role. (Path: SAP Integration Suite > Developing and Operating Integration Scenarios > Designing Integration Content > Define a Router).

2. SAP Help Portal

SAP Integration Suite

"Expressions": This page details the expression languages used in SAP Cloud Integration. The section "Operators in the Expression Editor" for Simple expressions lists == (Equals)

!= (Not Equals)

>= (Greater than or equal)

and contains as valid operators. While > and contains are supported

==

!=

and null/empty checks form the basis of most routing logic

making them the most appropriate answers. A null check is performed using == null or != null.