Hello everyone, I'm new here and just started training on Dynamics AX R2.
I'm following a guide in making a Primary Index but I can't choose the Index I created as a Primary Index.
I created an Index and set the " AllowDuplicate " property to no, It's not showing up in the dropdown menu of "PrimaryIndex". 
I hope you can help me cuz I can't progress the training with it.
Thanks!