Tradeable and Untradeable Platinum

[Undertaker222]

So I while ago I got the 75% platinum discount and bought 170 platinum but I still haven't spent my starter platinum yet. Gonna need to buy a new warframe slot soon so is there a way for me to use my starter platinum instead of the tradeable platinum without spending all 170 on trading?

[(PSN)eSportsManiac]

When ever possible promo platinum is automatically consumed first.

[ultragen]

The starter platinum that you got with your account creation will be spent first when doing market transactions. Then, the rest.

[Undertaker222]

Cool, thanks.