How To Fix RSSDA122 - Field &1: Type DECIMAL FLOAT is not allowed as characteristic

SAP Error Message - Details

• Message type: E = Error

• Message class: RSSDA - BW HANA Smart Data Access

• Message number: 122

• Message text: Field &1: Type DECIMAL FLOAT is not allowed as characteristic

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSSDA122 - Field &1: Type DECIMAL FLOAT is not allowed as characteristic ?

  The SAP error message RSSDA122 indicates that there is an issue with the data type of a characteristic in your SAP system. Specifically, it states that the type "DECIMAL FLOAT" is not allowed as a characteristic. This error typically arises when you are trying to use a field with a DECIMAL FLOAT data type in a context where only certain data types are permitted, such as in a characteristic definition for a data model or InfoObject.
  Cause:
  
  Data Type Restriction: In SAP BW (Business Warehouse) or other SAP modules, certain characteristics can only accept specific data types (e.g., CHAR, NUMC, or INT). The DECIMAL FLOAT type is not one of the allowed types for characteristics.
  Modeling Error: The error may occur during the modeling of InfoObjects, where a field defined as DECIMAL FLOAT is being incorrectly used as a characteristic.
  Incompatibility: The characteristic may be defined in a way that is incompatible with the data source or the data model being used.
  
  Solution:
  
  Change Data Type: If possible, change the data type of the field from DECIMAL FLOAT to a compatible type (e.g., CHAR or NUMC) that is allowed for characteristics. This may involve modifying the underlying database table or the InfoObject definition.
  Review Characteristic Definition: Check the definition of the characteristic in the InfoObject and ensure that it is set up correctly. Make sure that the data type aligns with the expected types for characteristics.
  Use Key Figures Instead: If the field is meant to represent a measure or a numeric value, consider using it as a key figure instead of a characteristic. Key figures can accept DECIMAL FLOAT data types.
  Consult Documentation: Review SAP documentation or help resources for specific guidelines on data types and characteristics to ensure compliance with SAP standards.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling DECIMAL FLOAT types.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP BW or the specific module you are working with to avoid similar issues in the future.
  
  By addressing the data type issue and ensuring that your characteristics are defined correctly, you should be able to resolve the RSSDA122 error.