How to make the name of an organic group unique can someone explain how to make groupnames unique? If i create 2 groups with the same name, i want to become a validation error. Actually i tested og in the commons distribution an there i can create groups with same names, but in the list of all groups are only one of the same groups listed.

Thanks for your help.

Greats Daniel
Assuming your og groups are based on node entities.


  
  You can have unique group titles with help of unique_field module.
  With help of this module you can set the title field as unique fields the content type generating groups on your site.