How To Fix /SAPAPO/SDP128 - In display mode you are not allowed to enter any values

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SDP -

• Message number: 128

• Message text: In display mode you are not allowed to enter any values

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/SDP128 - In display mode you are not allowed to enter any values ?

  The SAP error message /SAPAPO/SDP128 typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly when working with the Supply Network Planning (SNP) or Demand Planning (DP) modules. The message indicates that you are trying to enter or modify values in a display mode where such actions are not permitted.
  Cause:
  The error is caused by attempting to make changes to data while in a display-only mode. This can happen in various scenarios, such as:
  
  You are viewing a planning book or a data view that is set to display mode.
  The user authorization settings restrict editing capabilities.
  The planning book or data view is configured to be read-only.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Switch to Change Mode:
  
  If you are in a planning book or data view, check if there is an option to switch from display mode to change mode. This is usually done through a menu option or a button in the user interface.
  
  
  
  Check User Authorizations:
  
  Ensure that your user profile has the necessary authorizations to edit the data. You may need to contact your SAP security administrator to verify and adjust your permissions.
  
  
  
  Review Planning Book Settings:
  
  If you have access to the configuration, check the settings of the planning book or data view. Ensure that it is not set to read-only mode. This can be done in the planning book configuration settings.
  
  
  
  Use the Correct Transaction:
  
  Make sure you are using the correct transaction code that allows for data entry. For example, using /SAPAPO/SDP94 for planning books that allow changes.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific details about the planning book or data view you are working with. This can provide insights into its configuration and limitations.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Training and Documentation: If you are new to SAP APO, consider reviewing training materials or documentation to better understand how to navigate and utilize the system effectively.
  
  By following these steps, you should be able to resolve the /SAPAPO/SDP128 error and successfully enter or modify values as needed.