It’s ironic: A command in QuickBooks that you think will keep it healthy sometimes makes it sick.
I refer to the Rebuild Data command. You access it through File / Utilities / Rebuild Data. But wait, don’t click and launch it just yet!
Sometimes, in our opinion, the Rebuild Data command can damage a QuickBooks file to the point of being irrepairable.
The specific problem to avoid is one where the rebuild command disconnects payments from invoices or bills. This changes balances and is really hard to correct afterwards. See details about this problem here.
The Verify Data command, on the other hand, is harmless. You access it through File / Utilities / Verify Data.
The moral of the story is to verify often, but rebuild only as needed. And when you rebuild, check the results afterwards to make sure it didn’t make something worse (particularly A/R and A/P accounts).
Some users run the Rebuild Data command as a frequent, routine procedure on their file. We do not recommend that. But verifying your file frequently is a great idea.