Hey Everyone! Can anyone please tell me that there is any option of csv import on fulfillment request, item fulfillment, item receipt and paycheck journal. If there is no csv import option then how can I upload csv on that records ?

no way natively. Can be done with scripting.

You should be able to do thus with data loader on free tier of integrator.io (Celigo)

Can be done directly in Excel with CloudExtend Excel Data Management for NetSuite

Thanks Everyone for your help!

Payroll JE is same as regular JE so you can just import it as regular JE. That's how people been doing it in NS for longest time (as far as I can remember) 🙂

There is a CSV import for fulfillments:

Here's the help page for that: NS Help: Bulk Fulfilling Orders Using a CSV Import

that's to fulfill orders from the csv. You can't use native CSV import to update the records of an Item Receipt, or Item Fuflillment.