Incorrect map pin on GMB

Hi everyone,

I have a client with a rather large number of locations (1000+). All their listings were previously managed by a well-known vendor, however, it looks like since then a lot of their locations now have an incorrect map pin on GMB. My client has provided me with the correct lat/long for all their locations, however, the idea of manually correcting the map pin for over a 1000 locations doesn’t sound fun at all. I was wondering if i could update the lat/long in bulk for all their GMB locations?

I have heard about Google’s Geo Data Upload tool, but haven’t had the time to look into in more detail. Would this be a viable option? are there any other alternatives to a manual update?

Any insight would be appreciated - thank you!