How To Fix CN090 - The unit & for the external activity & only permits & decimal places


SAP Error Message - Details

  • Message type: E = Error

  • Message class: CN - Meldungen für Netzpläne

  • Message number: 090

  • Message text: The unit & for the external activity & only permits & decimal places

  • Show details Hide details
  • What causes this issue?

    You have entered an execution factor that results in the allowed number
    of decimal places being exceeded for an external activity.

    System Response

    INCLUDE NA_ALLG_NOVERARBEITUNG OBJECT DOKU ID TX

    How to fix this error?

    Enetr another execution factor.

    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message CN090 - The unit & for the external activity & only permits & decimal places ?

    The SAP error message CN090 indicates that there is an issue with the number of decimal places allowed for a specific unit of measure (UoM) in the context of an external activity. This error typically arises when you are trying to enter a quantity or value that exceeds the allowed number of decimal places for the specified unit.

    Cause:

    1. Unit of Measure Configuration: The unit of measure assigned to the external activity has a predefined number of decimal places. If you attempt to enter a value with more decimal places than allowed, this error will occur.
    2. Data Entry Error: The user may have mistakenly entered a value with too many decimal places.
    3. Inconsistent Data: There may be inconsistencies in the data configuration between the activity and the unit of measure.

    Solution:

    1. Check Unit of Measure Settings:

      • Go to the configuration settings for the unit of measure in SAP (Transaction Code: CUNI).
      • Verify the number of decimal places defined for the unit of measure in question. Adjust it if necessary, but be cautious as this may affect other areas of the system.
    2. Adjust Input Value:

      • Review the value you are trying to enter and ensure it conforms to the allowed number of decimal places for the specified unit of measure. Round or truncate the value as needed.
    3. Review Activity Configuration:

      • Check the configuration of the external activity to ensure it is correctly set up to use the appropriate unit of measure.
    4. Consult Documentation:

      • If you are unsure about the correct unit of measure or its configuration, refer to the SAP documentation or consult with your SAP administrator or functional consultant.

    Related Information:

    • Transaction Codes:

      • CUNI (Maintain Units of Measure)
      • CN21 (Create Work Breakdown Structure)
      • CN22 (Change Work Breakdown Structure)
    • SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.

    • User Training: Ensure that users are trained on the correct data entry practices, especially regarding units of measure and their decimal places.

    By following these steps, you should be able to resolve the CN090 error and ensure that your data entries comply with the system's requirements.

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