to increase a clients Account Limit #
On your Home screen click on Clients
Select History
Right click on the client/ edit details
In the black marked block is your account type ACCOUNT or COD, once the account has reach the limit the account type will change to COD in order extend the account you will need to change account type account shown in the marked black block
Now you can set your Account limit, after the limit is set now you can click on save indicated with the green block