How To Fix A5120 - Leading characteristics could not be uniquely determined.

A5120 - Overview

• Message type: E = Error

• Message class: A5 - Summarization in Investment Management

• Message number: 120

• Message text: Leading characteristics could not be uniquely determined.

What causes this issue?

For updating the summarization data, the system must be able to
uniquely determine the leading characteristics: "summarizatation
version," "investment program (name)," "approval year" and "logical
system" for each data record. The system is not able to do so.
The error can have one of these causes:
One of the three characteristics "summarization version," "investment
program (name)," or "approval year" has a different entry in two
different data records.
The user entry for one of the characteristics "summarization version,"
"investment program (name)," or "approval year" does not agree with the
entry in a data record.

System Response

Data is not updated.

How to fix this error?

Make sure that your entries for the characteristics "summarization
version," "investment program (name)," and "approval year" are correct,
and that you selected the correct input files.
If all of the above is correct, and you are using a standard SAP
program for data selection, then contact the SAP Hotline.
If you are using your own program for the data selection, make sure
that the values of the characteristics "summarization version,"
"investment program (name)," and "approval year" are identical in all
data records.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message A5120 - Leading characteristics could not be uniquely determined. ?

  The SAP error message A5120, "Leading characteristics could not be uniquely determined," typically occurs in the context of SAP's Controlling (CO) module, particularly when dealing with the assignment of characteristics in a data structure like a Profit Center or Cost Center. This error indicates that the system is unable to determine a unique leading characteristic for the data being processed, which is essential for proper reporting and analysis.
  Causes:
  
  Missing or Inconsistent Data: The leading characteristics (like Profit Center, Cost Center, etc.) may not be consistently defined or may be missing in the master data.
  Multiple Assignments: There may be multiple valid assignments for the leading characteristic, leading to ambiguity.
  
  Configuration Issues: The configuration settings in the controlling area or the relevant master data may not be set up correctly.
  Hierarchy Issues: If the characteristics are part of a hierarchy, there may be issues with the hierarchy structure that prevent the system from determining a