How To Fix MC060 - Field name & not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 060

• Message text: Field name & not unique

What causes this issue?

When you define aggregates (views, lock objects or matchcode objects),
you can assign the aggregate fields your own names (the system assigns
names to the basic fields automatically). These names must be unique.

System Response

The system has established that the names assigned to the aggregate
fields in an aggregate definition are not unique and issues an error
message.

How to fix this error?

Assign unique names to the aggregate fields in question.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC060 - Field name & not unique ?

  The SAP error message MC060, which states "Field name & not unique," typically occurs in the context of SAP's Material Management (MM) or Production Planning (PP) modules. This error indicates that there is a conflict with field names in a data structure, usually when the system is trying to process or display data that has ambiguous field names.
  Cause:
  
  Duplicate Field Names: The error often arises when there are multiple fields with the same name in a data structure or table. This can happen in custom developments, reports, or when using certain transactions that involve multiple data sources.
  Incorrect Data Model: If the data model has not been properly defined or if there are inconsistencies in the way data is being pulled from different tables, it can lead to this error.
  Custom Code Issues: If there are custom programs or enhancements that have not been properly coded, they may inadvertently create situations where field names are not unique.
  
  Solution:
  
  Check Data Structures: Review the data structures involved in the transaction or report that is generating the error. Ensure that all field names are unique.
  Debugging: If you have access to the ABAP debugger, you can step through the code to identify where the conflict is occurring. Look for SELECT statements or data retrieval logic that may be pulling in duplicate fields.
  Modify Custom Code: If the error is due to custom code, modify the code to ensure that field names are unique. This may involve renaming fields or changing the way data is retrieved.
  Use Aliases: In cases where you are joining multiple tables, consider using aliases for the fields to avoid naming conflicts.
  Consult Documentation: Review SAP documentation or notes related to the specific transaction or report to see if there are known issues or patches available.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to the MC060 error. SAP frequently updates its knowledge base with solutions for common errors.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SE11 (Data Dictionary), SE80 (Object Navigator), or SE37 (Function Module).
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or a consultant with expertise in SAP MM or PP for further assistance.