Clients requirement is that they have a typical scenario of onsite assignment(OA). In that case the employee is transferred to a subsidiary firm overseas where sap implementation is not under scope. During his tenure in the subsidiary firm the employee is inactive in the company payroll where client is having there own SAP. The client wants to block all leave calculation of the employee when he is transferred and wants to start the calculation after end of the tenure.(Suppose when the employee goes for OA his leave account contains 14. Then at the end of the tenure overseas his leave accrual will start from 14). That is accrual of earned leave will stop and then start from where it was after the tenure in the overseas. More over the employees gratuity calculation includes the tenure overseas. Can anyone please help how to tackle this scenerio.