I'm new to OpenERP. I'm using Open ERP 7.0. I have installed Sales/Accounting /HumanResource app's in my ERP. I have created a new Model named "x_salary" (with some new field like x_employeesalary ) and created a menu as " Salary" whose main parent is "Human Resources/Human Resources" . Now i can see Salary in HumanResource .I have Sales and Accounting app's installed. So in Sales i can create a customer and in account when i use to create a new Invoice i can use the same customer whom i have created in Sale's. Can any one tell how i can use newly created Field "x_salary" in Sales or in Accounting .