I read this https://help.miro.com/hc/en-us/articles/360017730373-Free-Plan
And I understand that there is no limit to invite team members.
But I want to know if there is limit for sharing Board.
It seem that there is, or not working with manage access screen in board share function.
Best answer by Kiron Bondale
Yes, there is a limitation for free plan users on being able to use the public guest editor sharing capability (see below):