504 Gateway Time-out when uploading entitlements

[cdavis2]

I am trying to upload a bunch of entitlements into Saviynt to do a bulk owner update. Every time I click the import button the page starts spinning and after a few minutes I get the 504 error. I am uploading roughly around 4 thousand entitlements. I would assume Saviynt should be able to handle that amount. Any insight on how to get this to work. 

[rushikeshvartak]

This is expected behavior whenever entitlements are above 3000 its shows time out error but it works in background. Please split import sheet into smaller junk and raise idea ticket for enhancement similar like role import process