Can a Business User access Sales and Service both ?

Summary:

My business user needs to work on Service and Sales both like Opportunity and Service Request access both. So can we provide them both access at same time ?

Content (required):

My business user needs to work on Service and Sales both like Opportunity and Service Request access both. So can we provide them both access at same time ?

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

23B

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