Business unit based employee data access to payroll manager

Summary:

We have a requirement where we need to segregate payroll data access between Business unit. In order to explain requirements we have BU1 and BU2 where payroll manager 1 will run and manage payroll of BU1 and payroll manager 2 will be maintaining BU2. we have created payroll payroll security profile but when we run payroll using payroll manager 1 who cannot see any employee data of BU2 but at backend system execute payroll of BU2 employee. We can also view the processes executed by manager 1 from manager 2 login. Our expectation is to completely segregate data between Business units.

Content (required):

We have a requirement where we need to segregate payroll data access between Business unit. In order to explain requirements we have BU1 and BU2 where payroll manager 1 will run and manage payroll of BU1 and payroll manager 2 will be maintaining BU2. we have created payroll payroll security profile but when we run payroll using payroll manager 1 who cannot see any employee data of BU2 but at backend system execute payroll of BU2 employee. We can also view the processes executed by manager 1 from manager 2 login. Our expectation is to completely segregate data between Business