How To Fix RSODSO_GUI031 - Row &1: Datatype STRING cannot be used for key fields

SAP Error Message - Details

• Message type: E = Error

• Message class: RSODSO_GUI - UI related messages

• Message number: 031

• Message text: Row &1: Datatype STRING cannot be used for key fields

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSODSO_GUI031 - Row &1: Datatype STRING cannot be used for key fields ?

  The SAP error message RSODSO_GUI031 indicates that there is an issue with the data type of a key field in a DataStore Object (DSO) or InfoProvider. Specifically, it states that the data type STRING cannot be used for key fields. In SAP BW (Business Warehouse), key fields must have specific data types that are compatible with the underlying database and the BW data model.
  Cause:
  The error occurs when you attempt to define a key field in a DSO or InfoProvider with the data type STRING. In SAP BW, key fields must typically be of a fixed length and should use data types such as CHAR, NUMC, or similar, rather than STRING, which is a variable-length data type.
  Solution:
  To resolve this error, you need to change the data type of the key field from STRING to a compatible data type. Here are the steps to do this:
  
  
  Open the DataStore Object (DSO): Go to the Data Warehousing Workbench in SAP BW and locate the DSO that is causing the error.
  
  
  Edit the Key Fields: Navigate to the key fields section of the DSO.
  
  
  Change Data Type: Identify the field that is currently set to STRING and change its data type to a compatible type, such as:
  
  CHAR: For character strings of fixed length.
  NUMC: For numeric values.
  
  
  
  Adjust Length: Ensure that the length of the new data type is appropriate for the data you intend to store.
  
  
  Activate the DSO: After making the changes, activate the DSO to apply the new settings.
  
  
  Test the Changes: Load data into the DSO to ensure that the error is resolved and that the DSO functions as expected.
  
  
  Related Information:
  
  Key Fields in SAP BW: Key fields are essential for uniquely identifying records in a DSO or InfoProvider. They must be defined correctly to ensure data integrity and proper functioning of the data model.
  Data Types in SAP BW: Familiarize yourself with the various data types supported in SAP BW, as using the correct data type is crucial for successful data modeling.
  SAP Notes and Documentation: Check SAP Notes and official documentation for any additional guidelines or updates related to data types and DSO configurations.
  
  By following these steps, you should be able to resolve the RSODSO_GUI031 error and ensure that your DSO is correctly configured.