How To Fix CM_EHPRC_COD_COMMON018 - Duplicate records exist for substance &1 and homogeneous material &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EHPRC_COD_COMMON - Compliance Data Messages - Common

• Message number: 018

• Message text: Duplicate records exist for substance &1 and homogeneous material &2

Self-Explanatory Message

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• What is the cause and solution for SAP error message CM_EHPRC_COD_COMMON018 - Duplicate records exist for substance &1 and homogeneous material &2 ?

  The SAP error message CM_EHPRC_COD_COMMON018 indicates that there are duplicate records for a specific substance and homogeneous material in the system. This error typically arises in the context of managing chemical substances and materials in SAP's Environment, Health, and Safety (EHS) module, particularly when dealing with compliance and regulatory data.
  Cause:
  The error occurs when:
  
  There are multiple entries for the same substance and homogeneous material combination in the database.
  This can happen due to data entry errors, incorrect data imports, or system migrations where duplicate records were not properly handled.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Duplicate Records:
  
  Use transaction codes like SE16N or SE11 to access the relevant database tables (e.g., CMLT_SUBST, CMLT_HOMMAT) and search for the substance and homogeneous material combination that is causing the error.
  Check for multiple entries that match the criteria.
  
  
  
  Analyze the Duplicates:
  
  Review the duplicate records to determine if they are truly duplicates or if they contain different data that needs to be preserved.
  Check for differences in attributes that may justify keeping multiple records.
  
  
  
  Delete or Merge Duplicates:
  
  If the duplicates are indeed identical and unnecessary, you can delete the redundant records.
  If there are differences, consider merging the records into a single entry that captures all necessary information.
  
  
  
  Data Validation:
  
  After resolving the duplicates, ensure that data validation checks are in place to prevent future duplicates from being created.
  Implement stricter data entry controls or validation rules in the system.
  
  
  
  Testing:
  
  After making changes, test the system to ensure that the error no longer occurs and that the functionality related to the substance and homogeneous material works as expected.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as C223 (Create Homogeneous Material), C224 (Change Homogeneous Material), and C225 (Display Homogeneous Material) for managing materials.
  EHS Configuration: Review the configuration settings in the EHS module to ensure that they are set up correctly to handle substances and materials.
  Documentation: Refer to SAP documentation or help resources for best practices in managing substances and materials to avoid similar issues in the future.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP EHS expert for further assistance.