Validation rules are enforced during development and use of device application. Error/warning messages are generated when validation rules are violated.
| Severity and message |
| Error: No source field specified for link: {0}. |
| Error: Both source attribute and source parameter are present for link: {0}. |
| Error: Target parameter must be present for link: {0}. |
| Warning: The source parameter ''{0}'' is not mapped to any argument on device link ''{1}''. |
| Error: Source attribute ''{0}'' in playback link ''{1}'' does not exist in Mobile Business Object ''{2}''. |
| Error: Target attribute ''{0}'' in playback link ''{1}'' does not exist in Mobile Business Object ''{2}''. |
| Warning: The target parameter ''{0}'' is not mapped to any argument on device link ''{1}''. |