Yes, UStVA has an official “corrected return” that you can also submit via Vivid.
When to amend
As soon as you notice a material mistake for the filed period.
Typical triggers: late invoices, wrong VAT rate, missing reverse charge, mis-assigned private share.
How to amend in Vivid
If you discover an error after submission (e.g., forgot a reverse charge invoice, mis-rated a sale):
Open Vivid Tax → Completed → select the VAT report you want to correct.
Tap Correct the report.
Fix the bookkeeping (add/edit/recategorize, set reverse charge, etc.).
Same review process.
Submit amended UStVA. You’ll get a new confirmation.