Hi Manas,
Consider the scenario where the First Trial balance load had Rs 1000 against Product 1. After that if there is a change where the amount in Product 1 is moved to Product 2 and the trial balance is reloaded. This time there is no line for Product 1 at all but there is a line for Product 2 for Rs 1000.
Correct me if I am wrong, but if we use the Option 'No deletion before execution. Replace existing data' then in the destination the original line of Product 1 will remain unchanged and Product 2 Rs 1000 will be added to the destination which will distort the trial balance.
To avoid such a situation I am executing with the option "delete all before execution".
Regards,
Collin.