The ability to delete an attribute from a constituent record is can be permissioned so that only users with that permission have the ability to delete the attribute. When this permission is set up in CRM, it is not also being respected in CRM Mobile, giving a user who should not have the permission the ability to delete the attribute.
A system role with the Constituent Attribute Edit Form will allow a user assigned to that role to edit and delete an attribute. Removing this permission resolves the issue.
Steps to Duplicate
Create a system role that does not allow the record operation, Constituent Attribute: Delete (so that attributes cannot be deleted by this user)
Add this role to a non-admin user
Run as user
Go to the constituent
Select the Attribute tab
Observe that the Delete action is not visible
As the same user, go to the CRM start page
Select mobile version hyperlink
Select Constituent Search
Search for the same constituent from above
Go toconstituent record
Select Attributes under More information
Observe Delete attribute option at bottom of screen, which will delete the attribute if selected