Claim from previous period deductions

Hai Experts,

Whenever an worker is returned aft vacation, determination comes "Claim from erstwhile period" deductions successful the adjacent months wage Payslip oregon immoderate different payments that we bash for the employee. Let maine know:

1- What is really this "Claim from erstwhile period"?

2- How to cognize what is this deductions for different that CWTR code?

3- How to region the "Claim from erstwhile period" from the Payments?