How To Fix C$590 - You are working without a change number for key date &1

SAP Error Message - Details

• Message type: E = Error

• Message class: C$ -

• Message number: 590

• Message text: You are working without a change number for key date &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message C$590 - You are working without a change number for key date &1 ?

  The SAP error message C$590 indicates that you are trying to perform an operation that requires a change number, but none has been specified for the key date provided. This typically occurs in the context of change management in SAP, particularly when dealing with configuration or master data changes.
  Cause:
  The error arises when:
  
  You are attempting to make changes to a material, BOM (Bill of Materials), routing, or other master data that is subject to change management.
  The system requires a change number to track changes, but you have not provided one.
  The key date you are working with does not have an associated change number.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Change Number Configuration:
  
  Ensure that the change number is correctly configured in your system. You can do this by navigating to the relevant configuration settings in SAP.
  
  
  
  Create a Change Number:
  
  If you do not have a change number, you will need to create one. This can typically be done in the transaction code CNO1 (Create Change Number) or through the relevant menu path in your SAP system.
  Specify the necessary details for the change number, including the validity period and any relevant descriptions.
  
  
  
  Assign Change Number:
  
  Once you have created a change number, you can assign it to the relevant objects (e.g., materials, BOMs) that you are trying to change.
  Use the transaction code relevant to the object you are working with (e.g., CS01 for BOM, MM02 for material) and enter the change number when prompted.
  
  
  
  Use the Correct Key Date:
  
  Ensure that the key date you are using is valid and corresponds to the change number you have created. The key date should fall within the validity period of the change number.
  
  
  
  Consult Documentation:
  
  If you are unsure about the process, refer to the SAP documentation or help files related to change management and change numbers for more detailed guidance.
  
  
  
  Related Information:
  
  Change Management in SAP: Change management is a critical aspect of SAP that allows organizations to track and manage changes to master data and configuration settings. It helps maintain data integrity and provides a historical record of changes.
  Transaction Codes:
  
  CNO1: Create Change Number
  CNO2: Change Change Number
  CNO3: Display Change Number
  CS01: Create BOM
  MM02: Change Material
  
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message, as there may be known issues or additional guidance provided by SAP.
  
  By following these steps, you should be able to resolve the C$590 error and continue with your work in SAP.