How To Fix 0K518 - The field & already has a field catalog entry

SAP Error Message - Details

• Message type: E = Error

• Message class: 0K - Messages for "General List Modules"

• Message number: 518

• Message text: The field & already has a field catalog entry

What causes this issue?

A field catalog entry already exists for the table name/field name
combination.
Each field in an output table can have only one field catalog entry.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 0K518 - The field & already has a field catalog entry ?

  The SAP error message 0K518 indicates that there is an issue with the field catalog in a report or a data structure where a field is being defined more than once. Specifically, the message states that the field already has an entry in the field catalog, which means that the system is trying to add a field that has already been defined.
  Cause:
  
  Duplicate Field Definition: The most common cause of this error is that the same field is being defined multiple times in the field catalog. This can happen if the field is included in the field catalog more than once, either manually or through a programmatic error.
  Incorrect Field Catalog Configuration: There may be an issue with how the field catalog is being constructed, leading to duplicate entries.
  Program Logic Error: If the field catalog is being generated dynamically, there may be a logic error in the code that leads to the same field being added multiple times.
  
  Solution:
  
  Check Field Catalog Entries: Review the code or configuration where the field catalog is defined. Ensure that each field is only added once. Look for loops or conditions that might be causing the same field to be added multiple times.
  Remove Duplicates: If you find that a field is being added multiple times, remove the duplicate entries from the field catalog definition.
  Debugging: If the field catalog is generated dynamically, use debugging tools to step through the code and identify where the duplicate entry is being created.
  Review Documentation: Check SAP documentation or notes related to the specific transaction or report you are working with to see if there are known issues or recommendations regarding field catalog entries.
  
  Related Information:
  
  Field Catalog: In SAP, a field catalog is a structure that defines the fields to be displayed in a report or output. It includes information about the field name, data type, and display properties.
  ABAP Programming: If you are working with ABAP code, familiarize yourself with how to properly define and manage field catalogs in your reports or programs.
  SAP Notes: Search for SAP Notes related to error message 0K518 for any specific patches or updates that may address this issue.
  
  By following these steps, you should be able to resolve the error and ensure that your field catalog is correctly defined without duplicate entries.