I made a customer inactive by mistake, how can i make the customer active again

I've got a few steps on how you can make an inactive customer active again, @frankmingo-gmail.

Let's proceed to the Customers tab to make a client active. Simply follow the steps below, and you're good to go:

1. Select the Sales menu from the left panel.
2. Choose the Customers tab.
3. Click the Settings ⚙ icon above the Action column, then choose the Include inactive checkbox.
   
4. Look for the inactive customer on the checklist.
5. In the Action section, click Make Active.
   
   
   

Additionally, here's a helpful reference you can utilize to help manage your customers in QuickBooks. It covers some information on how to add and merge duplicate clients.

That should get you back on track. Feel free to get back to this thread if you have other questions about handling customer lists in QuickBooks. I'll be around to help you. Stay safe!