How To Fix /SAPAPO/SDP129 - History cannot be entered in book, you cannot save data

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SDP -

• Message number: 129

• Message text: History cannot be entered in book, you cannot save 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/SDP129 - History cannot be entered in book, you cannot save data ?

  The SAP error message /SAPAPO/SDP129 indicates that there is an issue with entering historical data in the SAP Advanced Planning and Optimization (APO) system, specifically in the context of the Supply Network Planning (SNP) or Demand Planning (DP) modules. The message "History cannot be entered in book, you cannot save data" typically arises when there are constraints or settings that prevent the saving of historical data.
  Causes:
  
  Data Locking: The data book may be locked for editing, either due to a user lock or a system lock.
  Incorrect Configuration: The configuration settings for the planning book or data view may not allow for historical data entry.
  Time Period Issues: The time period for which you are trying to enter historical data may be closed or not available for editing.
  Authorization Issues: The user may not have the necessary authorizations to enter or modify historical data.
  Data Integrity Issues: There may be inconsistencies or errors in the data that prevent saving.
  
  Solutions:
  
  Check Data Locking: Ensure that the planning book is not locked. You can check for locks in transaction SM12 and release any unnecessary locks.
  Review Configuration: Verify the configuration of the planning book and the data view. Ensure that the settings allow for historical data entry.
  Check Time Period: Make sure that the time period you are trying to enter data for is open and available for editing. You can check this in the planning book settings.
  User Authorizations: Confirm that the user has the necessary authorizations to enter historical data. This can be checked in transaction SU53 after the error occurs.
  Data Integrity: Review the data for any inconsistencies or errors. You may need to run data consistency checks or validate the data before attempting to save again.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SNP1 for SNP planning books, DP for demand planning, and SM12 for checking locks.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search the SAP Support Portal for specific notes that may address this issue.
  Documentation: Review the SAP documentation for APO, particularly sections related to planning books and data entry, to ensure that you are following the correct procedures.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or APO support team for further assistance.