How to merge duplicate entries, create audit trails, generate reports in BUSY?

You can cancel or delete an entry if there are duplicate entries. To cancel an entry, first open the entry and use the shortcut key ALT + X and to delete an entry, first open the entry and use the key F8
And 
To maintain the Audit Trail in BUSY, Follow the steps given below:-
Go to 
Step 1 : Administration 
Step 2 : Configuration 
Step 3 : Features / Options
Step 4 : General 
Step 5 : Enable in Maintain Audit Trail feature. (This feature is enabled by default, in case you specify CIN or Company's GSTIN in the company, because as per MCA guidelines, Audit Trail is mandatory for private limited and public limited companies)
Step 6 : To view the Audit Trail report, Go to Display, then Check List and press Enter on Audit Trail.
And 
When users enter transactions into vouchers at the company, these transactions are added to the report. Because the report is generated on the basis of transactions. Follow the steps given below to view the report:-
Step 1 : Open Company in BUSY
Step 2 : Go to Display, various reports are available in BUSY, you can view this report as per your requirement