can you list most popular way?
Yes, You can use the following,
1) Create Package or DB Functions (User hook)
2) Fast formula (calculation, result, validation, skip roles).
3) EIT or SIT.
4) Standard API from Oracle.
5) Standard Key flex field.
6) Zoom function
7) Descriptive flex field standard one or you can create your won.
Form personalization.9) Custom.pll
10) Register new application forms and report.
11) Oracle Menu, Data group, request Group customization
12) Profile option definition parameter
13) refereance page definiation.
14) oracle system parameter definition
15) other more
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