No matter the size of your business, your QuickBooks Desktop file will grow quite large, resulting in performance issues, slow loading time, and unexplained glitches.
One solution is to use the QuickBooks archive/condense utility, but there are small implications with Method.
How Condensing your QuickBooks file Impacts Method
When condensing your QuickBooks data, do not delete any customers (with no transactions) or Items.
If you delete them, you might see some issues with your data in Method as well.
More information on QuickBooks Condense Data Utility
The Condense Data utility in QuickBooks Desktop streamlines your company data file by removing unused list elements and condensing closed transactions into summary journal entries. These changes made to your company file affect your accounts in exactly the same way as the detailed transactions. Read through the following article to know more about condensing: limitations, how it is done, and what to do before, during, and after the process.