<b>Text enhancements:</b>
Allow the customer to add supplementary documentation for data fields
non-specific to a transaction, and to change key word texts.
<b>
Why do you need enhancements ?</b>
The standard applications do not offer some of the functionality you need. The R/3 enchancement concept allows you to add your own functionality to SAP's standard business applications.
<b>What are the different types of enhancements ?</b>
Enhancements using customer exits
Customers' potential requirements which are not included in the standard software are incorporated in the standard as empty modification 'shells'. Customers can then fill these with their own coding. Enhancements can relate to programs, menus and screens. Upward compatibility is assured. In other words, SAP guarantees that the jump from the standard software to the exit and the interface which call the exit will remain valid in future releases.
<b>Enhancements to ABAP/4 Dictionary elements</b>
These are ABAP/4 Dictionary enhancements (creation of table appends), text enhancements (customer-specific key words and documentation for data elements) and field exits (creation of additional coding for data elements).
<b>What is customer development ?</b>
Creating customer-specific objects within the customer name range.
<b>What are the advantages of enhancements ?</b>
Do not affect standard SAP source code
Do not affect software upgrades
<b>Hope this links would be helpful</b>
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/media/uuid/f0f67fff-0a01-0010-ec96-8bf8a90a9d...
Enhancement Framework
http://help.sap.com/saphelp_nw04s/helpdata/en/83/43e040e136742ae10000000a155106/frameset.htm
Enhancement Framework - The New Way to Enhance Your ABAP Systems
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/9cd334f3-0a01-0010-d884-f5612003...
Implementing a BAdI in an Enhancement
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/d0456c54-0901-0010-f0b3-cd765fb9...
Introducing the Enhancement Framework
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/bb54c452-0801-0010-0e84-a653307f...
<b>Reward if useful</b>
Bluesky
