How do you check entries in Oracle?

Can you tell me to what tab to use to check it?

TOO>HELP>RECORD HISTORY , You will find window having the information of user created by and updated by

Basically im using Purchase Portal - So, my entry will be in PURCHASE ORDER SUMMARY

help->record history

We can get the entry details from Records History. There is an option called Reports where we need to mention which period reports we are looking for..

Query the record and Go to Help --> Record History. You will see Last Updated by

Navigator->Enter and Maintains->Assignment-> Entries

Help-> Record History

Yes

As a EBS Business user, You can see the record History like Help -> Record History As an IT user, you can check the data in Base Table columns (created_by, last_updated_by, creation_date & last_updated_date)

If you are using Oracle Ebiz , you can find it n Help -> Record History .
If you are using customized Oracle ERP system, You can try using the audit option on specific table, user or even a column .
Regards

the data histroy captured by  WHO COLUMNS