Any money that is being used in a pending order cannot be withdrawn. In other words, you cannot withdraw money that is being used for a pending purchase. To free up the money for withdrawal, simply cancel the relevant order(s).
Deposits from German or Austrian Banks
If you have recently made your a first time euro deposit from a German or Austrian bank account then withdrawals of up to 125% of the value of this deposit are locked for 72 hours.
For example, if a deposit of €1,000 is made from a German bank account then the equivalent of €1,250 will be withheld for the following 72 hours. Your ability to trade on Kraken is not limited by this measure.
If a further euro deposit from a German or Austrian bank is made within this 72 hour period then the timer will reset and your funds will be unavailable for withdrawal for a further 72 hours.