> third party ids are not yours. Treat them as strings, the other party can change them to string any day (happened to me more than once over the years) or they

> third party ids are not yours. Treat them as strings, the other party can change them to string any day (happened to me more than once over the years) or they could use a different integer size than what you support (this case, or an unlimited integer value type - some languages have that too)