Salary History Conversion

You can use following APIS for creation of Salary proposals and its components :

1. HR_MAINTAIN_PROPOSAL_API.INSERT_SALARY_PROPOSAL
2. HR_MAINTAIN_PROPOSAL_API.INSERT_PROPOSAL_COMPONENT
3. HR_MAINTAIN_PROPOSAL_API.APPROVE_SALARY_PROPOSAL

If you are not creating Employee History then the Salary APIs will give you problems. When employee record does not exist and you try to create salary and its components, it wont be able to do so and return errors. To create employee salary, you need payroll, pay basis and an element. When you try to create employee salary in past when you dont have employee record, it can not find the employee data and these mandatory columns as well. So you need to have same cutoff date for employee history and salary history. And you need to make sure that the employee payroll and other mandatory parameters are available while creating salary.