Inquiry regarding procedures for reissuing and resubmitting a Purchase Confirmation

As a small-scale trading company, I issued a Purchase Confirmation for the first time during this recent trade transaction. In the export supporting document information section, I set the "Purchase Confirmation for Raw Materials for Foreign Exchange Earnings" as the supporting document name and used the purchase order number received from the buyer as the supporting document number. I entered the HS Code, product name, specification, amount, and shipment date, and I entered a dummy tax invoice number, as I was told I could correct it later once the zero-rated tax invoice is issued. After that, I sent the Purchase Confirmation to the supplier to receive a zero-rated tax invoice, and after the export, I received the Export Declaration Certificate. My questions are: Can I reissue a revised Purchase Confirmation by adding the Export Declaration Certificate to the existing one and updating the tax invoice number to the zero-rated tax invoice number received from the supplier? Also, if I reissue it after these corrections, do I need to send this revised Purchase Confirmation to the purchasing company again?