The Enhancement Category in SAP defines how a structure or table can be enhanced with custom fields by a developer or customer without breaking system integrity or compatibility.
In SE11, when you create or display a table or structure, under the “Extras” menu → Enhancement Category, you can specify it.
Types of Enhancement Categories:
| Enhancement Category | Meaning |
|---|---|
| Cannot be enhanced | No fields may be added. Used when the structure/table is sensitive or used in critical logic. |
| Can be enhanced (character-type only) | Only character-like fields (CHAR, STRING, etc.) can be added. |
| Can be enhanced (any data type) | Fields of any type (INT, DEC, etc.) can be added. |
| Cannot be classified | System can’t automatically determine the enhancement impact — caution advised. |
Example Use Case:
You have a standard SAP table you want to enhance with a custom Z-field using an append structure.
If the enhancement category is “Cannot be enhanced”, the system will block the enhancement.
If it’s “Can be enhanced (character-type only)”, you can add a ZFIELD of type CHAR10, but not of type DEC.