Payment Keys
In PeopleSoft Global Payroll for Spain, you can define payment keys. Options are Company, Contract Number, Department, and Establishment ID. When the payment keys of the current period don't match the payment keys in the retro period, the deltas are managed as a separate gross-to-net calculation in the current calendar period. When a retro is launched that affects more than one calendar period, the deltas that come from each one will be summed only when the payment keys match.
For example, company information is needed for tax reporting purposes. The Agencia Tributaria needs to know which company the employee is working and being paid from.
So when retro is launched, you may need to report the tax calculation of the deltas related to the prior company. Or you may need to report the tax calculation of the deltas related to the current company. Which calculation you report depends on which company is declaring the payment to the fiscal territory.
Because PeopleSoft Global Payroll for Spain uses the corrective retro, it does not forward deltas into the current period in most cases. However, regarding tax calculation, the income deltas are transferred to the current period. You should review this during implementation and set up according to your organizational requirements.