The Automated User Solution:
Restart your PC.
Download this (Error 1904 QuickBooks) repair utility.
Press the Fix Repair catch after the output is finished.
Introduce the program and tap the Scan catch.
The Manual User Solution:
Restart your PC after the reclamation is done.
Begin the PC and sign on as Administrator.
Tap the Next catch in the affirmation window.
At that point select All Programs, Accessories, System Tools, lastly, pick System Restore and Click the Start catch.
Pick the most recent System Restore point from the showed on this rundown, click a reestablish point rundown and after that press straightaway.
Select Restore my PC to a prior time choice in the new window and afterward click straightaway.
On the off chance that you just have QB Database director this won't work, you should introduce the genuine QuickBooks exe also.
This is a Microsoft Windows error more often than not because of establishment not being kept running as chairman.
Twofold watch that QuickBooks exe is introduced on the server before introducing Avalara Avatax.
This can likewise be caused. In the event that you are attempting to introduce the connector on a Server that doesn't have the genuine QB exe introduced on it.
When you click OK on the error the establishment will state that it was effectively total.
Explore to AvaTax Configuration (File>AvaTax>Configuration)
Run QuickBooks as Administrator
Select Test Connection.
We trust that you have enough data about QB Error 1904. On the off chance that you need much else or have any inquiry like this. Don't hesitate to contact our QuickBooks client encourage the group. You can do as such effortlessly by dialing our helpline number.