When running a batch job - the business unit is auto populated for some user, what's the reason?

Summary:

When running a batch job - the business unit is auto populated for some user, what's the reason?

I tried logging in to one user and when I run 'import auto invoice' or 'import costs' the Business Unit are already populated, but for my account it's not populated what's the reason?

Can we remove the auto-populated business unit?

Content (please ensure you mask any confidential information):

this might also be the reason why some users are encountering this issue:

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):