How To Fix /SCMB/MC_PB_DEF183 - No ref. material defined for &1; NLQ calculation done on material level

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMB/MC_PB_DEF -

• Message number: 183

• Message text: No ref. material defined for &1; NLQ calculation done on material level

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMB/MC_PB_DEF183 - No ref. material defined for &1; NLQ calculation done on material level ?

  The SAP error message /SCMB/MC_PB_DEF183 indicates that there is no reference material defined for a specific material when performing a Net Logistics Quantity (NLQ) calculation at the material level. This error typically arises in the context of Supply Chain Management (SCM) or Advanced Planning and Optimization (APO) modules, where materials and their relationships are crucial for planning and execution processes.
  Cause:
  
  
  Missing Reference Material: The primary cause of this error is that the system cannot find a reference material associated with the material in question. This could be due to:
  
  The reference material not being defined in the system.
  Incorrect configuration or settings in the material master data.
  The material not being properly linked to a reference material in the planning setup.
  
  
  
  Data Inconsistencies: There may be inconsistencies in the master data or planning data that prevent the system from identifying the reference material.
  
  
  Configuration Issues: The configuration settings for NLQ calculations may not be set up correctly, leading to the inability to find the necessary reference material.
  
  
  Solution:
  
  
  Define Reference Material:
  
  Check the material master data for the material in question. Ensure that a reference material is defined in the relevant views (e.g., Basic Data, Sales, Purchasing).
  If a reference material is not defined, you may need to create or assign one.
  
  
  
  Review Material Master Data:
  
  Go to the material master (transaction code MM03) and verify the settings for the material. Ensure that all necessary fields are filled out correctly.
  Check if the material is marked for planning and if it has the appropriate planning parameters set.
  
  
  
  Check Configuration Settings:
  
  Review the configuration settings related to NLQ calculations in the SCM or APO system. Ensure that the settings are correctly configured to allow for reference material identification.
  If necessary, consult with your SAP Basis or SCM consultant to ensure that the configuration aligns with business processes.
  
  
  
  Data Consistency Check:
  
  Perform a data consistency check to identify any discrepancies in the master data that may be causing the issue.
  Use transaction codes like SLG1 to check for logs related to the error and identify any underlying issues.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific error message for additional insights or patches that may address the issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), MM02 (Change Material), and MC.9 (NLQ Calculation).
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message.
  User Forums: Engage with SAP community forums or user groups for shared experiences and solutions from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it. If the issue persists, consider reaching out to SAP support for further assistance.