Mass Activation for Profit Centers

Hi

I have two company codes (1000 & 2000). Now each company code had different profit centers. But i was able to use each others' profit center. (For ex: I was able to post in company code 1000 using profit center related to company code 2000).

Hence i removed the tick in profit center to company code assignment. After removing tick, when i saved it, it saved into inactive status.

So i will have to manually activate all the profit centers. There are around 2200 profit centers. So manual activation of profit center is not possible. Please help.