I'm not a Suitetalk or integration expert by any means, so just take it with a grain of salt, and it's very likely i'm not up to date:
Can I have only one Employee with multiple roles and generate several tokens for different integrations? Yes
Will this cause a conflict? Depends? It used to be the case web services had a default role not sure thats the case now, haven't used it in a while
can they request simultaneously? also a depends? depending on what you're doing and it'll probably affect the session handling, which will affect how this turns out? Whether or not your session is per call or if it's per session? I think there is some suitetalk thing. Restlet wise it's not restricted afaik the limit is the concurrent limit which is some form of suitecloud license based
Any cons?
Thank you!