This is not uniform. I have seen that some require the same day, some within 7 days, and the second situation is more. Simply using Apple 13 and ios 14 as examples, it takes about 3-5 seconds to generate an electronic invoice. When the business system clicks on the invoice query, if the invoice has not been generated, the system will automatically trigger the generation of an electronic invoice. Therefore, the query will take some time. But it will not affect the operation.
Electronic invoices are the product of the information age. Like ordinary invoices, they are distributed to merchants in the form of unified issuance by the tax bureau. The invoice numbers are distributed to merchants with unified national coding and unified anti-counterfeiting technology. The electronic invoices are attached with the signature mechanism of the electronic tax bureau.