How To Fix 0K306 - Extract & was read

SAP Error Message - Details

• Message type: E = Error

• Message class: 0K - Messages for "General List Modules"

• Message number: 306

• Message text: Extract & was read

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 0K306 - Extract & was read ?

  The SAP error message "0K306 Extract & was read" typically occurs in the context of data extraction processes, particularly when working with SAP BW (Business Warehouse) or SAP HANA. This error indicates that the data extraction process has encountered an issue where the specified data extract has already been read or processed.
  Cause:
  
  Duplicate Extraction: The extract has already been processed, and the system is trying to read it again.
  Data Locking: There may be a locking issue where the data is being accessed by another process.
  Configuration Issues: There could be misconfigurations in the data source or extraction settings.
  Data Source Status: The data source might be in a status that does not allow for extraction (e.g., it is not active or has been deactivated).
  
  Solution:
  
  Check Extraction Status: Verify the status of the data extraction process. Ensure that the extract has not already been processed.
  Re-run the Extraction: If the extract was processed successfully, you may need to reset the extraction process or adjust the parameters to allow for a new extraction.
  Review Locks: Check for any locks on the data source that might be preventing the extraction. You can use transaction codes like SM12 to view and manage locks.
  Configuration Review: Review the configuration settings for the data source and ensure that everything is set up correctly.
  Data Source Activation: Ensure that the data source is active and ready for extraction. You can check this in the Data Warehousing Workbench (transaction RSA1).
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as this can sometimes resolve underlying issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), SM12 (Lock Entries), and RSA3 (Data Source Test).
  SAP Notes: Check SAP Notes for any known issues or fixes related to this error message. You can search for specific notes that address extraction issues.
  Logs and Traces: Review logs and traces for more detailed error messages that can provide additional context for troubleshooting.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or BW team for further investigation.