Unable to save a copied transaction. Alerted that tax amount was updated.

This alert will appear if the copied transaction is not refreshed, Michael.

We can easily update any details on the transaction, such as the assigned tax rate, items, or rates, by toggling them and then clicking Save and Close.

Clicking the Refresh icon (↻) in the upper-left corner of your browser can also help refresh the transaction and reload the page.

Let me know if you have any other questions or need further assistance.