As I see here Look at the passes table, and determine which passes have changed since the given tag But what should I send if I get the wrong tag, for example with Future date like 01.01.2020
1) Should I send status NotModified or should I send NoContent, or I should send every serial with the latest tag?
2) And If I get the situation when a tag has date/information, in my case I have a timestamp, but anyway, If wasn't any wallet modification yet but I got a new tag? should I send something?
Like UpdateSinceTag = 1200 In wallet, I have 3 passes with tags 950,900,200. What should I send now? It close to first my question.