Hi naomi,
Thanks for posting in the Community!
There isn't any reported incident with data not showing in the GST report when running GST Detail report in QuickBooks Online. To isolate the situation encountered, let's use a new incognito window or a different supported browser. Using an incognito window does not store any data file.
Here's how:
Then, log in to qbo.intuit.com and access the GST detail again in the GST tab using the steps below.
If the report showed the details, let's clear cache and cookies on your regular browser.
If the issue is the same, let's try to go to Reports tab and search GST Details Report.
Drop by again in the Community if you have further concerns. I am around to help you.
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