How To Fix CJ158 - Constraint & not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 158

• Message text: Constraint & not valid

What causes this issue?

You are attempting to create time constraints for an activity, however
constraint &V1& is not allowed in this case.

How to fix this error?

Select one of the following constraints:
1 (must start on),
2 (cannot start before) or
3 (cannot start later than).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CJ158 - Constraint & not valid ?

  The SAP error message CJ158 "Constraint & not valid" typically occurs in the context of project management and controlling within SAP, particularly when dealing with project structures, WBS (Work Breakdown Structure) elements, or network activities. This error indicates that there is a constraint defined on a project element that is not valid or cannot be processed as expected.
  Causes of CJ158 Error
  
  Invalid Constraints: The constraint defined for a WBS element or network activity may not be valid due to incorrect settings or parameters.
  Missing Dependencies: The project structure may be missing necessary dependencies or relationships that are required for the constraints to be valid.
  Incorrect Dates: The start or finish dates defined for the project elements may not align with the constraints, leading to conflicts.
  
  Configuration Issues: There may be issues with the configuration settings in the project management module that affect how constraints are handled.
  Data Inconsistencies: There could be inconsistencies in the data