How To Fix ON151 - All classes were selected

SAP Error Message - Details

• Message type: E = Error

• Message class: ON - Tools in area Object Modeler / Object Editor

• Message number: 151

• Message text: All classes were selected

What causes this issue?

You have chosen the function Select on/off->Classes. On this and the
following screens all classes will be displayed as selected.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

No action is required. This is just for your information.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ON151 - All classes were selected ?

  The SAP error message ON151 ("All classes were selected") typically occurs in the context of asset accounting or when dealing with asset classes in SAP. This error indicates that the system has detected that all asset classes have been selected for a particular operation, which may not be allowed or may lead to unintended consequences.
  Cause:
  
  Selection Criteria: The error usually arises when a user attempts to execute a transaction or report that requires specific asset classes, but instead, all asset classes have been selected.
  Configuration Issues: There may be configuration settings in the asset accounting module that are not set up correctly, leading to this error.
  Transaction Parameters: The parameters set for the transaction may not be appropriate, causing the system to interpret the selection as invalid.
  
  Solution:
  
  
  Review Selection Criteria: Check the selection criteria in the transaction or report you are running. Ensure that you are selecting specific asset classes rather than all of them. 
  
  If you are using a selection screen, try to limit your selection to a few relevant asset classes.
  
  
  
  Adjust Configuration: If you have access to configuration settings, review the settings related to asset classes in the Asset Accounting module (transaction code OAOA or similar). Ensure that the settings align with your business requirements.
  
  
  Consult Documentation: Refer to SAP documentation or help files related to the specific transaction you are using. There may be specific guidelines on how to select asset classes correctly.
  
  
  User Training: If this error is frequently encountered by users, consider providing training on how to properly select asset classes in the relevant transactions.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide insights based on the specific version of SAP you are using.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in Asset Accounting, such as:
  
  AS01: Create Asset
  AS02: Change Asset
  AS03: Display Asset
  AW01N: Asset Explorer
  
  
  SAP Notes: Check for any SAP Notes related to this error message. SAP frequently releases notes that address known issues and provide solutions or workarounds.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can share their solutions.
  
  By following these steps, you should be able to resolve the ON151 error and proceed with your asset accounting tasks in SAP.