if i made any changes for one employee means it get reflect for others

Dear friends..

I am Abaper, i am in Support phase, i am facing one HR issue. kindly give me some idea to solve.

i have 2 employee number 2025 (VIJAYAN.M) and 2925 (VIJAYAN.M). in this both case employee name is same..

if i made any changes for employee 2025 infotype (for eg bank details) means, 2925 also get reflect the same changes vice versa..

Kindly give me some idea

Regards

Deva