Fix QuickBooks Error Code 6154 [Company File not Open]

[alexnelson12]

Many users have been looking for workable solutions to resolve this issue. To address all queries, we have come up with this article encapsulating the causes and fixes for QuickBooks Error Code 6154. So, follow up till the end.
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[petergroft]

Close QuickBooks:
Close QuickBooks if it is currently open.
Right-click on QuickBooks Icon:
Right-click on the QuickBooks icon on your desktop.
Run as Administrator:
Choose "Run as administrator" from the context menu.
Open the Company File:
Try opening the company file to see if the error persists.

Greetings,
Peter