Supply disappearing

[Kaspar]

As you can see, I'm producing about 3.5 k more supplies than I need, but the stockpile was also 11 k the turn before.
So why doesn't it increase?

[Kaspar]

And this is what it looked like the next turn:

[ernieschwitz]

There could be a number of factors.

First one is that your troops took damage in the form of readiness drops. If so, then that would lead to more supply consumption than planned. Since troops they use up supplies to regain readiness.

Second one is that troops produced are not taken into account as far as I know. These too require supplies, so they can fill up their stores.

I am sure there could be others, but those are just off the top of my head.

[Kaspar]

So how do you actually figure out how much supply you need to be producing?

Right now I'm writing down the SHQ stockpile and checking if it's growing or shrinking, and that can't be the best way (I hope).

[ernieschwitz]

I go into the Production view. There I select the SHQ. Then I look at the top of the total production. There it says how much production was actually required that turn.

Be aware that when talking about supply it is always a prognosis. It's never a hard number. It depends very much on the amount of readiness loss your troops take, and how many you produce. So always make sure that you have more supply than you actually need. If you don't you may end up in a sort of supply purgatory, where units simply try to catch up getting supplies enough. When that happens you would ordinarily need to get twice as much supply as actually needed.