Template:Format-stub Op Credits are items needed to preform various Campaign Operations in the Wings of the Goddess Expansion areas.
1 Op Credit is required to do the operations available in all 3 past nations. 1 credit is gained automatically every 1 Vana'diel day (1 Earth hour) after completion of the first quest needed to sign on to a specific nation. You may save your OP Credits for future missions. Some missions require more than one OP Credit to start.
It is currently unknown if there is a limit to how many Credits you may hold at one time.
Once and OP Credit is used it can't be refunded. If you fail a mission the OP Credit(s) you used will be lost and you will have to start the mission again provided you have enough OP Credits.