It’s concerning that your customers, invoices, and estimates have disappeared in QuickBooks Online (QBO), leith-hauladaytr. I have several steps for you to take to recover your data.
Excessive historical data in your browser can create discrepancies that hinder the display of transactions. Log in to your account through a private or incognito browser to verify if this is a browser-related issue.
Open an incognito using the following keyboard shortcuts:
If the issue persists, you'll want to ensure that you're using the correct company file. On the other hand, review the Audit Log to see if any changes or deletions have been made.