To know about the factors leading to this error and the solutions to fix Unable to send usage data error, go through the full length of this article.
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To fix QuickBooks Payroll Update Error, you can follow these steps:

Check Internet Connection:
Ensure that your internet connection is stable and working properly. A poor or interrupted connection can lead to update errors.

Restart QuickBooks and Computer:
Sometimes, simply restarting QuickBooks and your computer can resolve temporary issues causing the update

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Peter