If "Ignore stock levels on unmanaged items" is ticked, then you can sell as many as you require, and the stock levels won't be tracked.
Have a look at similar frequently asked questions or visit our FAQs page for more information
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Is it possible to bulk import new sales into TidyStock via a CSV file?
Does Tidy integrate with Box or SharePoint for document storage?
Where can I find the keywords for packing slips?
What is the notice period for cancellation?