An e-invoice is a digital record of a transactional exchange between a seller (supplier) and a purchaser (buyer), which goes through the government portal for validation and recordkeeping. It contains all the details of an invoice along with a Unique Identification Number (UIN), which is generated by the government system after proper verification of the core fields like Tax Identification No. (TIN), IC No., etc. and QR code, which enables online validation of the e-invoice.
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