Linking a TC21 Scanner to QuickBooks

The Community has you covered, @Dytrt.

Let's perform some troubleshooting steps to isolate the issue. If this is the first time you scan documents, you have to set up first the QuickBooks Scan Manager. Also, ensure that your scanner is TWAIN compliant to work with QuickBooks. 

Here's how:

1. From the Company tab, select Docs then Doc Center.
2. Click Scan a document.
3. Hit New to set up a new profile.
4. Edit the name of your profile, then tap Continue.
5. Adjust the profile settings as appropriate, and then Save.

Next is to set up and test your scanner:

1. Highlight your profile, then choose Select.
2. In the Select Scanner window, click Scanner Setup Wizard.
   Note: The Current Selection field should show your scanner. If you don't see your scanner, hit Yes, then Next to download the latest scanner database from Nuance.
3. Choose the appropriate mode. This is typically Normal Mode.
4. Check the Perform Tests box, then tap Next.
5. Select the test you want to run, then tick Next twice to start testing your scanner.
6. Check the Repeat this test in order to check all modes box, then Next to continue testing in other available modes.

For more details, see this article: QuickBooks Scan Manager: Scan and attach documents to transactions. 

If the issue persists, I suggest reaching out to our phone support team to further investigate the root cause of the issue. To do so, please follow these steps:

1. Click the Help menu at the top, and then select QuickBooks Desktop Help. 
2. Hit Contact Us.
3. Enter a brief description of your issue, for example, When using TC21 scanner tells us there are no users found. 
4. Tap Let's talk. 
5. Choose Start a chat.

To ensure we address your concern on time, you may check out our support hours. 

If you have further inquiries concerning using your TC21 scanner in QuickBooks, please let me know. I will gladly additionally help you.