How To Fix CW101 - Key field is invalid or entered in lowercase

SAP Error Message - Details

• Message type: E = Error

• Message class: CW - Country installation Customizing

• Message number: 101

• Message text: Key field is invalid or entered in lowercase

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.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CW101 - Key field is invalid or entered in lowercase ?

  The SAP error message CW101, which states "Key field is invalid or entered in lowercase," typically occurs when a user attempts to enter a key field value that does not meet the system's requirements. This error is often related to the following causes and solutions:
  Causes:
  
  Invalid Key Field Value: The value entered in the key field does not exist in the database or is not valid for the context in which it is being used.
  Lowercase Entry: SAP key fields are often case-sensitive. If the key field value is entered in lowercase when it should be in uppercase, the system will reject it.
  Incorrect Field Format: The format of the key field may not match the expected format (e.g., numeric vs. alphanumeric).
  Missing Authorization: The user may not have the necessary permissions to access the data associated with the key field.
  
  Solutions:
  
  
  Check Key Field Value: Verify that the value you are entering in the key field is correct and exists in the relevant database table. You can do this by checking the master data or using transaction codes like SE11 (Data Dictionary) to look up the table.
  
  
  Use Uppercase: If the key field is case-sensitive, ensure that you enter the value in uppercase letters. For example, if the key is a material number or customer ID, make sure to enter it in the correct case.
  
  
  Review Field Format: Ensure that the value you are entering matches the expected format for the key field. For example, if the field expects a numeric value, do not include any letters or special characters.
  
  
  Check Authorizations: If you suspect that the issue may be related to authorization, check with your SAP security team to ensure that you have the necessary permissions to access the data.
  
  
  Consult Documentation: Refer to the relevant SAP documentation or help files for specific details about the key field and its requirements.
  
  
  Contact Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error message.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE16 (Data Browser), or SE37 (Function Module) to help troubleshoot the issue.
  SAP Notes: Search for SAP Notes related to error CW101 in the SAP Support Portal for any specific patches or updates that may address the issue.
  User Training: Ensure that users are trained on the correct data entry practices, especially regarding case sensitivity and valid key field values.
  
  By following these steps, you should be able to resolve the CW101 error and successfully enter the required key field value in SAP.