Good morning

Can anyone advise me about the following

I cleared the audit trail for transactions up to 30.4.25

Then I ran compress data files (all) as I was not sure which items needed

to be ticked but then when I did a check data and back up after this it gave 

me some errors and warnings.

So I restored back to the back up done after clear audit trail but before doing compress

data files.

So can anyone advise which boxes I need ticked to compress the files after clear audit

trail so as to avoid the errors/warnings appearing ?

Many thanks

Yvette.