1. Print one invoice today and read only the summary block. You are checking three things in about a minute: both TRNs present, one row per VAT rate, and a category letter in the category column. Whatever is missing tells you which of Lessons 2 to 4 you owe an hour to.
2. Give each VAT rate its own tax group before you print anything else for a customer. Standard 5%, Zero-rated and Exempt, one group each. This is the change with the highest ratio of value to effort in the whole course, and it is the one that stops a combined row marked for review from reaching a customer.
3. Duplicate before you customise, and activate what you duplicate. Make the copy your default, print one document through Print with Template… to confirm it, and leave the shipped original locked where it is. The rest of the print range, including the cheque work in course 5.3, is on the Odoone apps page.

Want your UAE forms checked against your own taxes and tax groups before they go out? Talk to Odoone about your print setup.

This content is general information for UAE businesses, not tax, legal, or financial advice. Rules change and cases differ — speak to a qualified advisor about your situation.