What is the limit on the number of sales groups that can be added in Oracle CPQ?

Is there a limit on the number of sales groups which can be add in Oracle CPQ?

Requirement: Use Auto Forwarding Rules to restrict quote access based on office number.

Proposed solution: Run Auto Forwarding Rules on step transition. This will forward the quote to all the existing users for that office.

Pros: Need not add separate user group for each office.

Cons: When a new user is added, we need to run forwarding rules on all the quotes that belong to that office. This needs a mass update of all the quotes that belong to that office.

Alternate solution: Add Auto Forwarding Rules for office user group instead of individual users. When new user is added to office user group, they will have access to existing quotes also.