I have created a post type for which I will be creating posts manually. However I want each specific post to be assigned to a user which she can edit/manage later.
I don't users to create post on their own.
For e.g. there is a vendor post type where I will create a vendor specific post and assign it to a particular user. This user can not create more vendor posts but can only manage his/her posts assigned by me.
Hello. Thank you for contacting the Toolset support.
I think the best approach to achieve this is you should set post author as your particular user for the posts which you will create for vendor post type. You should activate the post author field by editing your vendor post type and checkmark the Author checkbox from "Sections to display when editing vendor" settings.