Evidence of export for zero rate VAT - FBA

Hi!

My first post here advice would be highly appreciated.
I just had my first post Brexit non UK sale through FBA. It was sold on Amazon.co.uk and shipped from a UK fulfilment centre to a customer in Ireland.
I am unsure how to handle VAT on my invoice. Technically I should zero rate the sale.
GOV.UK website says that I need to keep a proof of export if I zero rate a sale:

'### 6.3 Commercial transport evidence

This describes the physical movement of the goods, for example:

• authenticated sea waybills
• authenticated air waybills
• PIM/PIEX International consignment notes
• master air waybills or bills of lading
• certificates of shipment containing the full details of the consignment and how it left the UK or EU
• International Consignment Note/Lettre de Voiture International (CMR) fully completed by the consignor, the haulier and the receiving consignee, or Freight Transport Association own account transport documents fully completed and signed by the receiving customer’

Any idea how can I retain any of the above if the sale went through FBA? Amazon doesn’t share any details of the tracking/delivery/etc.

Thank you