How To Fix 63579 - For SU & & & cost collector for & is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: 63 - Messages for Real Estate Management

• Message number: 579

• Message text: For SU & & & cost collector for & is not unique

What causes this issue?

You have specified a cost collector using the settlement unit key and
the reference date. The system could not determine a unique cost
collector.

System Response

This is probably a programming error.

How to fix this error?

Inform your system administrator.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 63579 - For SU & & & cost collector for & is not unique ?

  The SAP error message 63579, which states "For SU & & & cost collector for & is not unique," typically occurs in the context of SAP's Project System (PS) or Controlling (CO) modules. This error indicates that there is a conflict or ambiguity regarding the cost collector associated with a specific service unit (SU) or cost object.
  Cause:
  
  Duplicate Entries: The error often arises when there are multiple cost collectors assigned to the same service unit or cost object, leading to ambiguity in the system.
  Configuration Issues: Incorrect configuration in the cost collector settings or in the assignment of service units can also lead to this error.
  Data Integrity Issues: There may be inconsistencies in the master data or transactional data that result in multiple cost collectors being linked to the same service unit.
  
  Solution:
  
  
  Check Cost Collector Assignments:
  
  Navigate to the relevant transaction (e.g., CJ20N for Project Management or KP26 for Cost Planning) and check the assignments of cost collectors to the service unit.
  Ensure that each service unit has a unique cost collector assigned.
  
  
  
  Review Configuration:
  
  Go to the configuration settings for cost collectors and service units in the SAP system. Ensure that the settings are correctly defined and that there are no overlaps or duplicates.
  
  
  
  Data Cleanup:
  
  If duplicates are found, you may need to delete or modify the conflicting entries to ensure that each service unit has a unique cost collector.
  Use transaction codes like SE16 or SE11 to check the underlying tables for any inconsistencies.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to this error message for any specific guidance or patches that may address the issue.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the error does not reoccur and that the system behaves as expected.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), KP26 (Change Plan Data), and others that may be involved in managing cost collectors and service units.
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. SAP frequently releases notes that provide solutions or workarounds for specific error messages.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP CO/PS modules for further assistance.