How To Fix KB021 - Reading data...

SAP Error Message - Details

• Message type: E = Error

• Message class: KB - Controlling: Reporting

• Message number: 021

• Message text: Reading data...

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?

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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.

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 KB021 - Reading data... ?

  The SAP error message KB021 typically indicates an issue related to reading data from the database, often in the context of cost center accounting or internal orders. This error can arise due to various reasons, including data inconsistencies, missing entries, or issues with the configuration of the system.
  Causes of Error KB021
  
  Missing Data: The system may be trying to access data that does not exist or has been deleted.
  Data Inconsistencies: There may be inconsistencies in the database, such as mismatched keys or corrupted entries.
  Authorization Issues: The user may not have the necessary authorizations to access the required data.
  Configuration Errors: Incorrect configuration settings in the controlling module or related areas can lead to this error.
  Technical Issues: Problems with the database or the SAP application server can also cause this error.
  
  Solutions
  
  
  Check Data Integrity:
  
  Verify that the data you are trying to access exists in the database.
  Use transaction codes like SE16 or SE11 to check