Please proofread

Hi,

Are these informative writings grammatically correct and easy to understand?

1. You're about to activate sets of compilation. All the changes that are made to the raw data base whose compilation sets are active will not be saved. Make sure that your editing works with the raw data base are finished before you proceed with the activation process.
2. You're about to archive the active compilation. This task is performed once in every period after the payroll preparation job is already completed. You cannot archive the same compilation twice. Make sure that your editing works with the active compilation are finished before you proceed with the archiving process.
3. You're about to purge the active compilation. All the current works with the active compilation will be lost. Make sure that your works with the active compilation are finished and the active compilation is archived before you proceed with the purging process. The effect of this task is irreversible!

I am planning to use them in my access application.

Thanks,

A.L.