I just entered a new project as a billing functional, like you guys must have done started looking at the system out of curiosity. The first random Rate Category i opened, i found a register permissible rate type having facts permissible rate maintained to it and other register type rates. In my earlier project, this was a big no. Register type rate types had register type rates and facts type rate type had facts permissible rates. So is this a bad convention to have facts permissible rates in register permissible rate types ? Has this been done by some inexperienced person ? or is this the convention in other projects also that i am unaware of ? Thanks is advance for your help!