How To Fix DT285 - Prefix for field name & is not valid

DT285 - Overview

• Message type: E = Error

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

• Message number: 285

• Message text: Prefix for field name & is not valid

What causes this issue?

The selected field name has a prefix which is not known in the current
system.

System Response

The table is not activated.

How to fix this error?

Choose a field name from a prefix namespace which is allocated to you.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT285 - Prefix for field name & is not valid ?

  The SAP error message DT285, which states "Prefix for field name & is not valid," typically occurs in the context of data dictionary objects, particularly when dealing with field names in structures, tables, or data elements. This error indicates that the prefix used for a field name does not conform to the naming conventions or rules defined in the SAP system.
  Causes:
  
  Invalid Prefix: The prefix used for the field name does not match the expected prefixes defined in the system. SAP has specific naming conventions for different types of fields.
  Field Name Length: The field name may exceed the maximum length allowed by SAP.
  Reserved Keywords: The field name may be using a reserved keyword or a name that is not allowed.
  Incorrect Data Element: If the field is based on a data element, the data element itself may have an invalid prefix.
  
  Solutions:
  
  
  Check Naming Conventions: Ensure that the prefix used for the field name