How To Fix KE0C212 - Source field "&" cannot be assigned to itself

SAP Error Message - Details

• Message type: E = Error

• Message class: KE0C - CO-PA: Customizing checks

• Message number: 212

• Message text: Source field "&" cannot be assigned to itself

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message KE0C212 - Source field "&" cannot be assigned to itself ?

  The SAP error message KE0C212, which states "Source field '&' cannot be assigned to itself," typically occurs in the context of SAP Controlling (CO) when you are trying to create or modify a data flow in a CO-PA (Profitability Analysis) report or when working with data transfer processes. This error indicates that there is an attempt to assign a field to itself, which is not allowed.
  Cause:
  The error is caused by a configuration or programming mistake where a source field is being mapped to itself in a data flow or assignment. This can happen in various scenarios, such as:
  
  Incorrect Data Flow Configuration: When setting up a data flow, if the source and target fields are incorrectly defined to be the same, the system will throw this error.
  Custom ABAP Code: If there is custom code that manipulates data and inadvertently assigns a field to itself, this error can occur.
  Data Transfer Processes: During data transfer processes, if the mapping of fields is not done correctly, it can lead to this error.
  
  Solution:
  To resolve the KE0C212 error, you can follow these steps:
  
  
  Check Data Flow Configuration:
  
  Go to the configuration settings for the data flow in CO-PA.
  Review the mapping of source and target fields to ensure that no field is being assigned to itself.
  
  
  
  Review Custom Code:
  
  If there is any custom ABAP code involved in the data processing, review it to ensure that there are no assignments where a field is being set to its own value.
  
  
  
  Adjust Data Transfer Settings:
  
  If the error occurs during a data transfer process, check the settings and mappings to ensure that fields are correctly defined and that there are no self-assignments.
  
  
  
  Testing:
  
  After making the necessary adjustments, test the data flow or process again to ensure that the error has been resolved.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to CO-PA and data flows for additional guidance and best practices.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KE30 (for CO-PA reports) and KE4S (for data transfer) to navigate the system effectively.
  
  By following these steps, you should be able to identify the root cause of the KE0C212 error and implement a solution to resolve it.