How To Fix CM_EHFND_API_SUBST021 - &1: Substance exists several times

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EHFND_API_SUBST -

• Message number: 021

• Message text: &1: Substance exists several times

What causes this issue?

You want to transfer the substance with &V1& number several times.

System Response

The system could not transfer the substance with &V1& number clearly.

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

Ensure that the substance is transferred uniquely.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM_EHFND_API_SUBST021 - &1: Substance exists several times ?

  The SAP error message CM_EHFND_API_SUBST021 indicates that there is a problem with the substance data in the system. Specifically, the message states that a substance exists multiple times, which typically means that there are duplicate entries for a substance in the database.
  Cause:
  
  Duplicate Substance Entries: The most common cause of this error is that the substance you are trying to create or modify already exists in the system with the same identifier (e.g., substance name, CAS number).
  Data Import Issues: If substances were imported from an external system or file, there may have been duplicates in the source data.
  Incorrect Configuration: There may be issues with the configuration of the substance management module that allows for duplicate entries.
  
  Solution:
  
  
  Check for Duplicates:
  
  Use the SAP transaction code CODES or CUP to search for the substance in question. Look for any existing entries that may match the one you are trying to create or modify.
  You can also use the Substance Search functionality to find existing substances.
  
  
  
  Remove or Merge Duplicates:
  
  If you find duplicate entries, you may need to delete or merge them. Ensure that you have the necessary authorizations to perform these actions.
  If merging, ensure that all relevant data is consolidated into a single entry.
  
  
  
  Data Validation:
  
  Before importing data, validate the source data to ensure there are no duplicates. This can be done using data cleansing tools or scripts.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources related to substance management for any specific guidelines on handling duplicates.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration.
  
  
  
  Related Information:
  
  Substance Management: This is a critical area in SAP for industries dealing with chemicals, pharmaceuticals, and other regulated materials. Understanding how substances are managed in SAP can help prevent such issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CUP (Manage Substances) and CODES (Substance Search) for managing substances effectively.
  Data Governance: Implementing data governance practices can help maintain data integrity and prevent duplicates in the future.
  
  By following these steps, you should be able to identify and resolve the issue related to the CM_EHFND_API_SUBST021 error message.