A: Hi Marius!

There are no rules against this and many people serve multiple clients in a single workspace. It is easier to assign your larger clients to their own workspace so reporting, tracking, social profiles, preferences, customer lists, etc. all stay completely separate. However, if your budget is tight, you can combine into one. Here's a knowledgebase article on how to best manage multiple clients in a single workspace: https://help.campaign3.com/article/577