How To Fix FMCA_INCORR046 - Creation not possible as master data not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: FMCA_INCORR - Messages for Inbound Correspondence

• Message number: 046

• Message text: Creation not possible as master data not unique

What causes this issue?

You want to create inbound correspondence requests in the inbound
correspondence history. You have not entered a unique record of master
data to call the transaction. Because of this it is not possible to
create requests.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FMCA_INCORR046 - Creation not possible as master data not unique ?

  The SAP error message FMCA_INCORR046 indicates that the system is unable to create a record because the master data is not unique. This typically occurs in the context of Financial Management (FM) or Controlling (CO) modules where certain master data records must be unique to ensure data integrity and proper processing.
  Cause:
  The error is usually caused by one of the following reasons:
  
  
  Duplicate Entries: There are existing records in the system that have the same key fields as the new record you are trying to create. This could be due to:
  
  Duplicate master data entries (e.g., cost centers, internal orders, etc.).
  Incorrect data entry or configuration that allows for non-unique records.
  
  
  
  Configuration Issues: The system may be configured to require unique identifiers for certain types of master data, and the new entry violates this rule.
  
  
  Data Migration Issues: If data was migrated from another system, it may have introduced duplicates that were not present in the original system.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check for Existing Records:
  
  Use transaction codes like SE16 or SE16N to check the relevant database tables for existing records that may conflict with the new entry.
  Identify the fields that are causing the uniqueness violation.
  
  
  
  Correct Duplicate Entries:
  
  If duplicates are found, determine if they can be merged, deleted, or modified to ensure uniqueness.
  If the duplicates are valid and should exist, consider adjusting the configuration to allow for multiple entries if appropriate.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the relevant module (FM or CO) to ensure that the uniqueness requirements are correctly set up.
  Consult with your SAP Basis or configuration team if changes are needed.
  
  
  
  Data Cleansing:
  
  If the issue arose from data migration, perform data cleansing to remove or correct duplicate entries.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific module you are working with for any additional guidance on handling master data uniqueness.
  
  
  
  Related Information:
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SE16/SE16N: For data browsing.
  FMX1: For creating master data in FM.
  KSB1: For displaying cost center line items.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  
  User Roles and Authorizations: Ensure that the user attempting to create the record has the necessary authorizations to view and modify the relevant master data.
  
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it. If the problem persists, consider reaching out to your SAP support team for further assistance.