Error "CTR 1000 / XXXXXX is not assigned to a business area"

Hi,

I am getting the error " CTR 1000 / XXXXXX is not assigned to a business area". In KS02 for a CC we have not assigned any BA and there are transaction posted to it and If I am trying to give the BA to the CC system is not allowing.

I am getting an error message KI167. Could any one help me on this.