How To Fix CNV_20000171 - Valid inputs are +1, -1 , -2 only


SAP Error Message - Details

  • Message type: E = Error

  • Message class: CNV_20000 - Messages for fiscal year change

  • Message number: 171

  • Message text: Valid inputs are +1, -1 , -2 only

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  • Self-Explanatory Message

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    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 CNV_20000171 - Valid inputs are +1, -1 , -2 only ?

    The SAP error message CNV_20000171 indicates that a specific input value is expected, and the only valid inputs are +1, -1, or -2. This error typically arises in the context of data migration or conversion processes, particularly when using SAP's tools for data transfer or transformation.

    Cause:

    The error is triggered when the system receives an input value that is not one of the accepted values (+1, -1, -2). This could happen due to:

    1. Incorrect Input: The user may have entered an invalid value in a field that only accepts the specified inputs.
    2. Data Mapping Issues: During data migration, the mapping of source data to target fields may not align correctly, leading to invalid values being passed.
    3. Configuration Errors: There may be a misconfiguration in the settings of the migration tool or program that is causing it to expect these specific values.

    Solution:

    To resolve this error, you can take the following steps:

    1. Check Input Values: Review the input values being provided to the program or transaction. Ensure that they are strictly +1, -1, or -2.
    2. Data Validation: Implement validation checks in your data preparation process to ensure that only valid values are included before executing the migration or conversion.
    3. Review Mapping Configuration: If this error occurs during a data migration process, check the mapping configuration to ensure that the source data is correctly aligned with the expected target values.
    4. Consult Documentation: Refer to the SAP documentation or help files related to the specific migration tool or program you are using for any additional context or requirements regarding input values.
    5. Debugging: If you have access to debugging tools, you can trace the execution of the program to identify where the invalid input is being generated.

    Related Information:

    • SAP Notes: Check SAP Notes for any known issues or patches related to the error message CNV_20000171.
    • Migration Tools: Familiarize yourself with the specific SAP migration tools you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) and their input requirements.
    • Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.

    By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.

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