Is there any solution for this?

Sometime system attendance got problem (technical glitch). For me attendance system only for monitoring if the employee absent or not. This is just for reference. Sometimes they come to worrk but they are unable to key in the attendance (for example company black out), computer exploded, odoo system crash. So, it's better that they do request leave manually whether a sick leave or unpaid leave that can have effect on the Payslip.

As of now there is no integration between those two modules. But, yes there is the integration between holiday management and payroll modules. And, yes we must build a custom module for integrating attendances with payslip module. Thanks!