I am working for a company that has several sites. The two sites use different IT systems. I have a sharepoint list from company A that I need to replicate in company B. The list was done by someone else so I am not familiar with all the functionalities it might have.
I am a very new user of sharepoint when it comes to creating lists. I have a couple of questions:
If you are trying to create a new list based on existing list in same SharePoint tenant, you can create a list from existing list like:
Documentation: Create a new list based on the columns in another list
If you are trying to create a new list based on existing list in different SharePoint tenant, try using PnP Provisioning engine and PnP PowerShell for exporting the list/site templates and use those in new SharePoint tenant.
Check these documentations: