This process reads and processes HMRC DPS data downloaded from their PAYE (On line) for Employers service. Please see HM Revenue & Customs: Viewing your PAYE notices and reminders.
Each change processed by the Kwik-Pay DPS Data import is recorded in the audit log. Changes are only applied if the DPS event number is greater than the last DPS event number processed for that transaction type (P6, P9, etc) for the employee and the new value is different from the value already recorded for the employee.