Let me jump into this thread and add details about the item list, Morales.
Mostly, the crucial phases in the accounting process are identifying transactions, creating journal entries, posting transactions, preparing trial balances, analyzing worksheets, preparing financial statements, and closing books.
As mentioned by @Carneil_C, any changes made to the item list impact transactions and reports as well. However, when you're only dealing with the change of names such as customer name and item, this won't give an issue even if it's tied up to an item or name unless there are duplicate names created that cause conflict for the system to recognize.
Other than that, any changes in date and amount can also be a crucial factor that affects your reports. Therefore, I recommend seeking your accountant's advice first before making any edits to guide you on how you'll have to go about the process.
Furthermore, QuickBooks Desktop offers different kinds of reports to ensure you'll get the data you need. You'll have to make sure to filter each group so it shows up the right information for your business. I've added this article for more details: Customize Reports In QuickBooks Desktop.
Let me know if you have any questions about the items list. The community is always here to get you covered any time of the day. Have a great day to you
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