A user receives an error when sycning CRM on an iPad:
Exceeded 100000 distinct ids.
The query returns too many results, hitting a Salesforce query limit.
Some queries, when run by a user without View All Data permission, require checking Sharing Rules if many records are returned.
This includes queries on objects that use a polymorphic foreign key, such as Task or Attachment.
Such queries return this exception because the operation requires too many resources.
Update the Where clause on the VMobile Object Configuration (VMOC) for the object to narrow the scope of the data downloaded.
Salesforce Help Documentation: