How To Fix CNV20201081 - Input error for number range number; only 01 and 02 are allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20201 -

• Message number: 081

• Message text: Input error for number range number; only 01 and 02 are allowed

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 CNV20201081 - Input error for number range number; only 01 and 02 are allowed ?

  The SAP error message CNV20201081 indicates that there is an input error related to a number range where only specific values (in this case, "01" and "02") are allowed. This error typically arises during data migration or conversion processes, particularly when using SAP's data migration tools or during the execution of specific programs that require a defined set of inputs.
  Cause:
  
  Invalid Input: The error is triggered when an input value outside the allowed range (in this case, anything other than "01" or "02") is provided.
  Configuration Issues: There may be a misconfiguration in the number range settings or the data migration tool that is expecting specific values.
  Data Quality Issues: The source data being migrated may contain unexpected or invalid values that do not conform to the expected input.
  
  Solution:
  
  Check Input Values: Review the input values being provided to the program or transaction. Ensure that only "01" or "02" is being used as input.
  Data Validation: If you are migrating data, validate the source data to ensure it conforms to the expected formats and values. Cleanse the data if necessary.
  Configuration Review: Check the configuration settings related to the number range in the SAP system. Ensure that the settings are correctly defined to accept the intended values.
  Consult Documentation: Refer to the relevant SAP documentation or notes related to the specific transaction or program you are using to understand the expected input and any constraints.
  Error Handling: Implement error handling in your data migration scripts or programs to catch and log such errors for easier troubleshooting in the future.
  
  Related Information:
  
  SAP Notes: Check for any SAP Notes related to the specific transaction or program you are using. SAP frequently releases notes that address known issues and provide guidance on resolving them.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in diagnosing or fixing the issue, such as SE11 (Data Dictionary), SE37 (Function Module), or SE80 (Object Navigator).
  Community Forums: Consider searching or posting on SAP community forums or platforms like SAP Community, where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.