Inventory Dataload without downtime

Dear All,

We are planning to do Inventory data load in BI PRD system, I have gone through some documents related to this all those document says we need to lock users before loading data and it will take around 60 hrs to load data, as my company is FMCG regular transactions will be happening daily, if we take a downtime for 2 days surly it will affect business. Is there any other way that we can load data without locking users by giving posting date or document number for 2LIS_03_BF & 2LIS_03_UM datasource.

Thanks & Regards,

Rithika