How To Fix CJ490 - Enter only dates or duration and one date

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 490

• Message text: Enter only dates or duration and one date

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CJ490 - Enter only dates or duration and one date ?

  The SAP error message CJ490 ("Enter only dates or duration and one date") typically occurs in the context of project management within SAP, particularly when dealing with project planning and scheduling in transaction codes like CJ20N (Project Builder) or CJ02 (Change Project).
  Cause:
  This error arises when the user attempts to enter conflicting or incorrect date information in the project planning fields. Specifically, it indicates that the system expects either:
  
  A start date and an end date, or
  A duration and a start date.
  
  If both a start date and an end date are provided, or if the duration is not specified correctly alongside a date, the system will trigger this error.
  Solution:
  To resolve the CJ490 error, follow these steps:
  
  
  Check Input Fields: Review the fields where you are entering dates or durations. Ensure that you are only entering:
  
  A start date and an end date, or
  A start date and a duration.
  
  
  
  Correct Data Entry:
  
  If you want to specify a duration, make sure to leave the end date field blank.
  If you want to specify both start and end dates, ensure that the duration field is left blank.
  
  
  
  Validate Dates: Ensure that the dates you are entering are valid and logical (e.g., the start date should not be after the end date).
  
  
  Use the Correct Format: Make sure that the dates are in the correct format as per your SAP system settings.
  
  
  Check Dependencies: If the project has dependencies or constraints, ensure that they are not causing conflicts with the dates you are trying to enter.
  
  
  Consult Documentation: If you are unsure about the required fields, refer to the SAP documentation or help resources for guidance on project planning.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes like CJ20N (Project Builder), CJ02 (Change Project), and CJ03 (Display Project).
  SAP Notes: Check SAP Notes for any known issues or patches related to project management and scheduling.
  User Training: If you frequently encounter this error, consider additional training on project management within SAP to better understand the data entry requirements.
  
  By following these steps, you should be able to resolve the CJ490 error and continue with your project planning activities in SAP.