How To Fix CN237 - Only one project version can be created during processing

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 237

• Message text: Only one project version can be created during processing

What causes this issue?

During project/network processing, you created a new project version.
You are now trying to create a further project version. However, you
must save the project/network first. This also saves the first project
version.
&NOTE&
A newly created project version is not saved until you save the
project/network.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

How to fix this error?

To create a further project version, first, save the current
project/network. Then call up the project/network again and make your
changes. Create a new project version and save the project/network
again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN237 - Only one project version can be created during processing ?

  The SAP error message CN237 ("Only one project version can be created during processing") typically occurs in the context of project management within SAP, particularly when dealing with project versions in the Project System (PS) module. This error indicates that the system is trying to create multiple project versions simultaneously, which is not allowed.
  Cause:
  
  Multiple Versions Attempted: The error usually arises when there is an attempt to create more than one project version for the same project at the same time.
  Concurrent Processing: If multiple users or processes are trying to create or modify project versions concurrently, it can lead to this error.
  System Configuration: There may be specific configurations or settings in the system that restrict the creation of multiple versions.
  
  Solution:
  
  Check for Existing Versions: Before attempting to create a new project version, check if there is already an existing version for the project. You can do this by navigating to the project in the Project System and reviewing the versions.
  Sequential Processing: Ensure that project version creation is done sequentially. If multiple users are involved, coordinate to avoid simultaneous attempts to create versions.
  Locking Mechanism: Implement a locking mechanism or use transaction codes that prevent concurrent processing of project versions.
  Review User Authorizations: Ensure that users have the appropriate authorizations to create project versions, as sometimes authorization issues can lead to unexpected behavior.
  System Configuration Review: Consult with your SAP Basis or configuration team to review any settings that might be causing this restriction.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder) or CJ02 (Change Project) to manage project versions.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review SAP documentation on Project System (PS) for best practices on managing project versions and understanding the implications of version control.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.