A commercial permit application is usually reviewed by several departments at once — building, fire, health, and sometimes planning or public works. Each department can issue its own comments.
A correction letter is normal. It is not a rejection. The goal is a complete, coordinated response that resolves every comment in one resubmittal instead of triggering another cycle.
Permit Guru, LLC tracks each department separately so you always know which review is outstanding and what is holding it.