How To Fix GB119 - Nested rules are not supported in Release 2.0

SAP Error Message - Details

• Message type: E = Error

• Message class: GB - Messages used by the Boolean code generator

• Message number: 119

• Message text: Nested rules are not supported in Release 2.0

What causes this issue?

You have attempted to create a subrule which contains another subrule.
This is not supported in version 2.00.

System Response

None

How to fix this error?

Remove the subrule from the rule.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GB119 - Nested rules are not supported in Release 2.0 ?

  The SAP error message GB119, which states "Nested rules are not supported in Release 2.0," typically occurs in the context of SAP's Business Rules Framework (BRF+) or similar rule-based systems. This error indicates that the system has encountered a situation where rules are defined in a nested manner, which is not supported in the specified release version.
  Cause:
  
  Nested Rules: The primary cause of this error is the use of nested rules within the rule definition. In BRF+, rules can be defined to execute based on certain conditions, but in Release 2.0, the framework does not support having one rule defined within another.
  Rule Structure: The structure of the rules may have been designed in a way that inadvertently creates a hierarchy or nesting, which is not permissible in the current version.
  
  Solution:
  
  Flatten the Rule Structure: Review the rules and ensure that they are not nested. Instead of having rules that call other rules, you should create a flat structure where all rules are independent.
  Refactor Logic: If the logic requires complex conditions, consider refactoring the rules to use alternative approaches, such as:
  
  Combining conditions into a single rule.
  Using decision tables or other constructs that are supported in the version you are using.
  
  
  Upgrade: If the business requirements necessitate the use of nested rules, consider upgrading to a newer version of the framework that supports this feature, if available.
  
  Related Information:
  
  Documentation: Refer to the official SAP documentation for BRF+ or the specific module you are working with to understand the limitations and capabilities of the version you are using.
  SAP Notes: Check SAP Notes for any updates or patches that might address this issue or provide additional guidance.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered and resolved similar issues.
  
  By addressing the structure of your rules and ensuring compliance with the limitations of Release 2.0, you should be able to resolve the GB119 error.