CJ183 - Constraints for actual dates are not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 183

• Message text: Constraints for actual dates are not possible

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CJ183 - Constraints for actual dates are not possible ?

  The SAP error message CJ183, which states "Constraints for actual dates are not possible," typically occurs in the context of project management and controlling within SAP, particularly when dealing with project structures, such as WBS (Work Breakdown Structure) elements or network activities.
  Cause:
  This error usually arises due to one or more of the following reasons:
  
  
  Date Constraints: The actual start or finish dates of a project or activity are being set in a way that conflicts with the defined constraints. For example, if you are trying to set an actual start date that is later than the planned finish date, or if the actual dates do not align with the scheduling constraints defined in the project.
  
  
  Project Status: The project or WBS element may be in a status that does not allow for changes to actual dates. For instance, if the project is locked or if certain periods are closed for posting.
  
  
  Incorrect Configuration: There may be configuration settings in the project management module that are not allowing for the actual dates to be updated as intended.
  
  
  Missing Authorizations: The user may not have the necessary authorizations to change actual dates in the project.
  
  
  Solution:
  To resolve the CJ183 error, consider the following steps:
  
  
  Check Date Entries: Review the actual start and finish dates you are trying to enter. Ensure that they are logically consistent with the project timeline and do not violate any constraints.
  
  
  Review Project Status: Check the status of the project or WBS element. If it is locked or in a closed period, you may need to unlock it or open the period for posting.
  
  
  Adjust Constraints: If there are specific constraints set on the project or activity, you may need to adjust these constraints to allow for the actual dates to be entered.
  
  
  Authorization Check: Ensure that you have the necessary authorizations to make changes to actual dates. If not, contact your SAP administrator to obtain the required permissions.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on handling date constraints in project management.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this issue. Sometimes, there are known bugs or issues that have been documented by SAP with recommended fixes.
  
  
  Testing in a Sandbox: If possible, replicate the issue in a test environment to better understand the cause and test potential solutions without affecting production data.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder) or CJ02 (Change Project) to navigate and manage project data effectively.
  Project Management Configuration: Understanding the configuration settings in the Project System (PS) module can help in troubleshooting similar issues in the future.
  User Roles and Authorizations: Review the roles assigned to users in the SAP system to ensure they have the necessary permissions for project management tasks.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP Project System for further assistance.