Update the Running No. after the import xml data

Hi Guys,

Anyone knows how to update data for Item No after import .xml file.

I need to update the running No.

(Eg: Import from .xml --> FP-NP_SYR)
1. Current data in Item table is FP-NP-SYR-001
2. New import Data update into system --> FP-NP-SYR-002

How to modify the updated data FP-NP-SYR into FP-NP-SYR-002


Thanks in Advance.