What SUNAT requires from your shop's software: UBL XML, boleta or invoice depending on the customer, the CDR, the OSE and the electronic remission guide for parts.
How SRI authorization works, what the access key is, how the RIDE differs from the receipt itself, and what all that requires from your shop's software.
Which document applies depending on the customer, what the CAE is and why it runs out, and what the daily report to the DGI requires from your software.
Invoice or tiquete depending on the customer, what the 50-digit numerical key is, and why Hacienda's response message is the part most often overlooked.
How Panama's electronic invoicing system works, what a PAC is, what the CUFE is, and what all that means for your shop's software.
What an e-CF is, how the familiar NCF fits in, what commercial approval means, and what all that requires from the shop's software.
Why Portugal requires the software itself to be certified by the AT, what communicated series are, the ATCUD, the QR Code and the SAF-T (PT) file.
Access key, CFOP, NCM, digital certificate, cancellation and contingency: what changes in the shop's software when a part goes out with a nota.
When the shop uses NFC-e instead of NF-e, what the CSC is, how the QR Code works, and what happens when the internet goes down at the counter.
Why the shop's labor goes on an NFS-e instead of an NF-e, how ISS works, what changes with the national standard, and what that requires from your system.
What CFDI 4.0 requires from your shop's software: PAC stamping, the customer details that can sink an invoice, SAT catalogs and cancellations.
Which receipt your shop issues depending on your status and your customer's, how the CAE is obtained, and what your management program needs to solve without double entry.
In Chile your shop issues different documents depending on who you're selling to, and each one uses up folios you have to request from the SII before you run out. Here's what that requires from your software.
In Colombia the DIAN validates your invoice before it reaches the customer, and the POS ticket has also been electronic for a while. Here's what that requires from the program you run your shop with.
No foreign SaaS can issue your local fiscal invoice: here's what every country requires, which local software is legitimate, and how to combine the best of both worlds.