How To Fix QS279 - Do not use a blank in the key &

SAP Error Message - Details

• Message type: E = Error

• Message class: QS - QM: Master data

• Message number: 279

• Message text: Do not use a blank in the key &

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message QS279 - Do not use a blank in the key & ?

  The SAP error message QS279 ("Do not use a blank in the key &") typically occurs when there is an attempt to use a key that contains a blank space in a context where it is not allowed. This can happen in various scenarios, such as when defining characteristics, classes, or other key fields in SAP.
  Cause:
  
  Blank Spaces in Key Fields: The most common cause of this error is the presence of leading, trailing, or embedded spaces in the key fields that are being used in the transaction or configuration.
  Incorrect Data Entry: Users may inadvertently enter a space when creating or modifying records.
  Data Import Issues: If data is being imported from external sources, it may contain unintended spaces.
  
  Solution:
  
  Check Key Fields: Review the key fields in the relevant transaction or configuration. Ensure that there are no leading, trailing, or embedded spaces.
  Trim Spaces: If you find any spaces, remove them. This can often be done manually or by using functions in SAP that allow you to trim spaces.
  Data Validation: Implement validation checks in your data entry processes to prevent spaces from being entered in key fields.
  Review Data Imports: If the error arises from data imports, ensure that the data is cleaned and validated before import. Use tools or scripts to remove spaces from the data.
  Use Transaction Codes: If applicable, use transaction codes like SE11 (Data Dictionary) or SE37 (Function Builder) to check the definitions of the keys and ensure they are correctly defined without spaces.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on the specific transaction or module you are working with.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the error is being triggered and gather more context about the data being processed.
  
  By following these steps, you should be able to resolve the QS279 error and prevent it from occurring in the future.