NW 7.4 client 066 unable to copy user

Hi All,

I want to delete client 066 in our Solman 7.2 system, but when I log on using SAP* I am not authorised to run transaction SCC5. So I thought I'd check the user profiles which shows only S_TOOLS_EX_A & S_USER_ALL. So I thought I'd change it to have SAP_ALL. Only to be greeted with "You are not authorized to assign user group to profiles". So I thought OK I'll create a new user instead.

But complains of "NUMBER_GET_NEXT AENDBELEG INTERVAL_MISSING".
I also can't run SCDN, not authorised.

If I try to copy the SAP* user as another user I get the same error.

You are not authorized to assign user group to profile S_TOOLS_EX_A
You are not authorized to assign user group to profile S_USER_ALL

What can I do about this?

Cheers
Craig