Duplicates and merging

Find frequently asked questions (FAQ) about duplicate records and merging records.

Does binding information in field 250 justify a new record?
How do I keep records from being merged by Duplicate Detection and Resolution (DDR)?
Is there a preference on how to submit duplicate bibliographic records for merging?
Where do I report incorrect merges?
Where do I send duplicate authority records to for merging?
Where do I send duplicate bibliographic records to for merging?