How To Fix RSDHA179 - Column '&1' has to be registered as a key figure

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 179

• Message text: Column '&1' has to be registered as a key figure

What causes this issue?

Output column &V1& is registered as a characteristic, but the data type
of this output column is not valid for characteristics.

System Response

The registration procedure is cancelled.

How to fix this error?

You have two options. You can either register the output column as a key
figure or you can change the data type of the output column.
The data types for characteristics and key figures are listed below:
ABAP data types for characteristics:
CHAR,,- Character String
STRG,,- String
NUMC - Character string with only digits
DATS - Date field (YYYYMMDD) stored as char(8)
TIMS - Time field (hhmmss), stored as char(6)
ABAP data types for key figures:
DEC - Decimal Floating Point
FLTP - Floating point number, accurate to 8 bytes
INT4 - 4-byte integer
The following SQL data types are supported:
The following SQL data types are supported:
TINYINT is mapped to INT4 (key figure),,
SMALLINT is mapped to INT4,,(key figure),,
INTEGER is mapped to INT4 (key figure),,
DECIMAL is mapped to DEC (key figure)
FLOAT is mapped to FLTP (key figure)
DOUBLE is mapped to FLTP (key figure)
CHAR is mapped to CHAR (characteristic)
VARCHAR is mapped to STRG,,(characteristic)
NVARCHAR is mapped to CHAR (characteristic)
DATE is mapped to DATS (characteristic)
TIME is mapped to TIMS (characteristic)

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA179 - Column '&1' has to be registered as a key figure ?

  The SAP error message RSDHA179 indicates that a column in your InfoProvider (such as an InfoCube or DataStore Object) is being used in a way that requires it to be defined as a key figure, but it has not been registered as such. This typically occurs in the context of SAP BW (Business Warehouse) when working with data modeling and reporting.
  Cause:
  The error arises when:
  
  A column (characteristic) is being treated as a key figure in a query or report, but it has not been defined as a key figure in the InfoProvider.
  The data model is not correctly set up to reflect the intended use of the data, leading to inconsistencies in how data is processed and reported.
  
  Solution:
  To resolve this error, you need to ensure that the column in question is properly defined as a key figure in the relevant InfoProvider. Here are the steps to do this:
  
  
  Access the Data Model:
  
  Go to the Data Warehousing Workbench (transaction code RSA1).
  Navigate to the InfoProvider where the column is defined.
  
  
  
  Edit the InfoProvider:
  
  Open the InfoCube or DataStore Object (DSO) that contains the column.
  Check the structure of the InfoProvider to see the list of characteristics and key figures.
  
  
  
  Define the Column as a Key Figure:
  
  If the column is not already defined as a key figure, you will need to add it.
  In the InfoProvider structure, find the column (characteristic) that is causing the error.
  Change its properties to register it as a key figure. This typically involves setting the data type and aggregation behavior appropriately.
  
  
  
  Activate the InfoProvider:
  
  After making changes, ensure that you activate the InfoProvider to apply the changes.
  
  
  
  Check Queries and Reports:
  
  Review any queries or reports that reference this column to ensure they are correctly configured to use the newly defined key figure.
  
  
  
  Test the Changes:
  
  Run the query or report again to verify that the error has been resolved.
  
  
  
  Related Information:
  
  Key Figures vs. Characteristics: In SAP BW, key figures are numerical values that can be aggregated (e.g., sales amounts, quantities), while characteristics are descriptive attributes (e.g., product names, customer IDs). Understanding the difference is crucial for proper data modeling.
  Data Modeling Best Practices: Ensure that your data model is designed with clear definitions for key figures and characteristics to avoid similar issues in the future.
  SAP Documentation: Refer to SAP Help Portal or specific BW documentation for detailed guidance on data modeling and InfoProvider configuration.
  
  If you continue to experience issues after following these steps, consider consulting with your SAP BW administrator or a technical consultant for further assistance.