When the user creates a record of an object in CRM for iPad, an error occurs: Record Type ID: this ID value isn't valid for the user: 012000000000000AAA
The user is assigned a Record Type for the object in a Permission Set and not assigned on the user's Profile.
This is a known limitation for iPad when using Permission Sets.
A Permission set allows users to grant access to Record Types but does not allow setting a default Record Type.
If a default Record Type is not set, iPad uses the Master Record Type. However, if a user has access to other Record Types, Salesforce does not allow users to use the Master Record Type.
The only available configuration option is for the user to set a default Record Type on the profile.