When I go back into an estimate, and select EDIT - the software just not respond ? Its been working fine since I got QB but last few days - i cant even DUPLICATE ??

I'll guide you to perform some troubleshooting steps so you can edit and duplicate an estimate in QuickBooks Online (QBO), Tony.

Please know that duplicating an estimate depends on the layout you're using. If you're in the new estimate experience, you'll see the option to Make a Copy instead of Duplicate. Here's an article for the step-by-step guide: Duplicate an invoice or an estimate in QuickBooks Online.

In some cases, a corrupted cache can cause conflict with the software, which results in being unresponsive. To resolve this, I recommend logging in to your account in a private browsing window. Doing so allows you to access QBO with a fresh start. Please refer to the following keyboard shortcuts.

• For Google Chrome browser: Ctrl + Shift + N
• For Mozilla Firefox browser: Ctrl + Shift + P
• For Safari browser: Command + Shift + N

Once resolved, please return to your original browser to clear its cache or utilize another compatible one.

When a customer accepts your estimate, you can convert it directly into an invoice to link them together.

You can always visit the Community page if you need further assistance with editing or duplicating estimates. We're only a few clicks away from continuing to assist you. Keep safe.