If you are not able to create or edit a Custom Data Element, then this usually indicates that you belong to an administrator group that does not have the appropriate administrative permissions.  A Site Admin at your organization can make the following changes to the admin group you belong to by going through the steps below:
  1. Constituent360>Groups
  2. Click Administrator Group List
  3. Search for the appropriate admin group
  4. Click Edit Permissions
  5. Select System Administration from the drop down window
  6. Choose the Database Manager level or higher
  7. Click Save