Bank Account determination for multiple account id's
I have a 1 bank which 6 different account id's as CA01,02...etc upto 06.For using Automatic payment program I have defined the account for CA02 in customizing.Now I have to define accounts for other account id's as well. But the system does not permit me to do so. It says "An entry already exists with same key"
Now the issue is the payment method has to be cheque for all CA account, and the currency is also same for all. Also the house bank will be the same for these accounts. So how can I assign different accounts for multiple account id's?