As shown below,dont't set Use Hierarchy with Yes.Don't know why, please help.
*This post is locked for comments
I have the same question (0)Hi Yaqiong Xin
You must have atleast one hierarchy setting active. See the screenshot below and you'll be able to edit your rollup field hierarchy.
How to create? read the url from the heading "Configure the hierarchy relationship" https://community.dynamics.com/crm/b/misscrm360exploration/posts/crm-2015-how-to-configure-amp-customize-hierarchy-relationship-for-custom-entity
More about it https://neilparkhurst.com/2016/08/06/dynamics-crm-rolled-up-fields-and-hierarchical-relationships/
Community Member
2
Christoph Pock
1