Hi Anil,
what is your requirement now?
If you don't want to generate /561 (Claim) and /563 (Claim from previous month) wage types you need to modify the IT0045 (Loans data) based on earnings you have to change the IT0045 repayment amount manaually for that specific period and after that particular period you need to put repayment actual amount.
For Loans we can't prioritize the deductions, If this is any other custom wage types we can maintain deduction priorities in table (V_T51P6) but for technical wage types we can't prioritize.
As per my knowledge, we need to change the IT0045 data manually.
Regards,
Venkat Polisetty