How To Fix /SAPAPO/RBA155 - Subst. preselection not active in rule strategy &2/&3/&4 for item &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/RBA -

• Message number: 155

• Message text: Subst. preselection not active in rule strategy &2/&3/&4 for item &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RBA155 - Subst. preselection not active in rule strategy &2/&3/&4 for item &1 ?

  The SAP error message /SAPAPO/RBA155 indicates that the substitution preselection is not active in the rule strategy for a specific item in the Advanced Planning and Optimization (APO) module. This error typically arises in the context of the SAP APO system when dealing with rules for substitution in planning scenarios.
  Cause:
  
  Inactive Substitution Preselection: The substitution preselection feature is not activated for the specific rule strategy being used for the item in question.
  Configuration Issues: There may be a misconfiguration in the rule strategy settings or the substitution rules themselves.
  Item-Specific Settings: The item for which the error is raised may not have the necessary settings or rules defined to allow for substitution.
  
  Solution:
  
  
  Activate Substitution Preselection:
  
  Go to the configuration settings for the rule strategy in the SAP APO system.
  Ensure that the substitution preselection is activated for the relevant strategy.
  This can typically be done in the transaction code /SAPAPO/RBA or through the relevant customizing path in the SAP GUI.
  
  
  
  Check Rule Strategy Configuration:
  
  Review the configuration of the rule strategy to ensure that it is set up correctly.
  Verify that the substitution rules are properly defined and linked to the strategy.
  
  
  
  Review Item Settings:
  
  Check the specific item settings to ensure that it is eligible for substitution.
  Make sure that the item is assigned to the correct planning object structure and that all necessary attributes are set.
  
  
  
  Testing:
  
  After making the necessary changes, test the substitution process again to confirm that the error has been resolved.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/RBA for rule strategy configuration and /SAPAPO/SDP94 for checking the planning book.
  Documentation: Refer to SAP Help documentation for detailed guidance on configuring substitution rules and strategies in APO.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or provide updates related to this error message.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or APO functional team for further investigation.