How To Fix DT462 - Key field & has forbidden DECFLOAT type (D16S/D34S)

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 462

• Message text: Key field & has forbidden DECFLOAT type (D16S/D34S)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT462 - Key field & has forbidden DECFLOAT type (D16S/D34S) ?

  The SAP error message DT462 indicates that a key field in a database table is defined with a forbidden DECFLOAT type (D16S/D34S). This error typically arises when you are trying to use a DECFLOAT data type for a key field in a database table, which is not allowed in SAP.
  Cause:
  
  Data Type Restrictions: In SAP, certain data types are not permitted for key fields in database tables. DECFLOAT types (D16S/D34S) are among those restricted types.
  Table Definition: The error may occur during the creation or modification of a table where a DECFLOAT type is mistakenly assigned to a key field.
  
  Solution:
  
  
  Change Data Type: Modify the data type of the key field from DECFLOAT to a supported type, such as:
  
  CHAR
  NUMC
  INT
  DEC (with appropriate precision and scale)
  Other standard types that are allowed for key fields.
  
  
  
  Adjust Table Definition: If you are working with a custom table, go to the Data Dictionary (SE11) and change the definition of the table to ensure that key fields do not use DECFLOAT types.
  
  
  Check Dependencies: If the table is already in use, ensure that changing the data type does not affect existing applications or data integrity.
  
  
  Transport Requests: If you are making changes in a development environment, ensure that the changes are included in a transport request for proper migration to other environments (e.g., QA, Production).
  
  
  Related Information:
  
  SAP Documentation: Refer to the SAP Help Portal or the ABAP documentation for more details on data types and their usage in database tables.
  Data Dictionary (SE11): Use transaction SE11 to view and modify table definitions.
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions related to this error.
  
  By following these steps, you should be able to resolve the DT462 error and ensure that your database table is correctly defined.