When enhancing data element documentation, include your SAP documentation as an include module. By doing this you do not lose the reference to SAP documentation. Any following documentation delivered by SAP is also taken into consideration.
How to include our documentation as Include Module?
the best way is to use a standard enhancement in CMOD - look under the menu option Text Enhancements > Keywords to change the text description of a Data Element - but remember this will apply throughout the whole system.