No entry or drop down list is found for terms in customer information for all our quickbook account.

Hello @GHA,

Welcome aboard to the Community. Allow me to help you figure out about the missing terms in QuickBooks Online.

I suggest you review the status of the terms you created if they are inactive. You can go to the List section by clicking the Gear icon and selecting All lists.

For the detailed steps, here's how:

1. Click the Gear icon in the upper-right corner.
2. Below Lists, select All lists.
3. Choose Terms. 
4. Press the small gear icon above the Action column.
5. Put a checkmark beside Include inactive.
6. Review the terms.
7. Hit Make active if necessary. 

In case it shows inactive, I recommend checking your audit log. It may be updated by a user from your account (see screenshot below).

I've also included some resources in case you need some ideas about updating customer information, like the terms:

• Edit customer information
• How to edit, delete, and restore list elements

I'm only a few clicks away if you have any other questions. Wishing you and your business continued success.