How To Fix COM_PME_PARSER117 - Restriction not possible: expression not linear

COM_PME_PARSER117 - Overview

• Message type: E = Error

• Message class: COM_PME_PARSER - Configuration

• Message number: 117

• Message text: Restriction not possible: expression not linear

What causes this issue?

You can only use formulas to restrict a numeric characteristic if the
formula in the characteristic you want to restrict is linear.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

COM_PME_PARSER117 - Details

• The SAP error message COM_PME_PARSER117 with the description "Restriction not possible: expression not linear" typically occurs in the context of SAP's optimization and planning tools, such as SAP Integrated Business Planning (IBP) or SAP Advanced Planning and Optimization (APO). This error indicates that the system encountered a non-linear expression when it expected a linear one, which is a requirement for certain types of optimization problems.
  
  Cause:
  
  Non-linear Expressions: The error arises when the model includes non-linear constraints or objective functions. Linear programming requires that all relationships be linear, meaning they can be expressed in the form of a straight line (e.g., ( ax + by = c )).
  Complex Calculations: If you are using complex calculations or functions (like multiplication of decision variables, powers, or other non-linear functions), the optimizer cannot process these as linear constraints.
  Incorrect Model Setup: Sometimes, the model may be incorrectly set up, leading to unintended non-linear expressions.
  
  
  Solution:
  
  Review Expressions: Check