An object is not appearing in the Enabled Objects section from the Validation Rule Admin tab after adding a new validation rule and Refreshing Validation Rule Data.
A VMobile Object Configurations (VMOC) with devices set as either iPad or WinModern is required to be picked up in the Validation Rule Admin.
Be sure an active VMOC exists for the object and it is has Device set to either iPad or WinModern.
CRM Help Documentation: Offline Validation Rules
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