Techniques and solutions are provided for checking two or more object instances or files for consistency. If an inconsistency is detected, remedial action can automatically be taken to resolve the inconsistency. For example, a check type to determine a particular type of consistency can be associated with a remedial action to be implemented if a check fails. The two or more object instances or files can represent data that is stored at a source system, sent to a target system, and where a version of the data sent to the target system is then received back by the source system and used for consistency checking. In particular implementations, object instances or files can be assigned a common identifier to facilitate their comparison.