{"Name":"00000000","Description":{"Content":"","Type":"Text|HTML"},"EnrollmentStyle":3,"EnrollmentQuantity"
:1,"AutoEnroll":false,"RandomizeEnrollments":false,"NumberOfGroups":null,"MaxUsersPerGroup":null}
And this is the response Data that still creates groups under the category.
{"GroupCategoryId":1331166,"EnrollmentStyle":"PeoplePerGroupSelfEnrollment","EnrollmentQuantity":1,"AutoEnroll"
:false,"RandomizeEnrollments":false,"Name":"00000000","Description":{"Text":"","Html":""},"Groups":[2630613
,2630614,2630615,2630616],"MaxUsersPerGroup":1}
I even tried to send in 0 as NumberOfGroups but it still creates the Groups.