Depending on the legal requirements, you might want to collect and store"evidence" during the signups process, i.e. to prove when and by which ip address the sign up took place and when the subscription to a newsletter or they payments became effective. Especially here in Germany it's good to have because there are people trying to sue others for privacy claims.
In that case, it might become very valuable if you can prove that a certain ip signed up or that a validation was performed from a certain email address.
The same goes for B2B VAT handling in Europe, the seller is liable, but the buyer has to declare it (even ftom the US), so you better validate the VAT and store the response.
Depending on the legal requirements, you might want to collect and store"evidence" during the signups process, i.e. to prove when and by which ip address the sign up took place and when the subscription to a newsletter or they payments became effective. Especially here in Germany it's good to have because there are people trying to sue others for privacy claims.
In that case, it might become very valuable if you can prove that a certain ip signed up or that a validation was performed from a certain email address.
The same goes for B2B VAT handling in Europe, the seller is liable, but the buyer has to declare it (even ftom the US), so you better validate the VAT and store the response.
Ooh, good call. Thanks for the insight, Philip.
VAT problems are usually solved with the billing and/or shipping address.
Thanks. I'm going to use an address checking API because trying to roll your own gets so crazy.