Record Numbers

Last Updated On June 18, 2019
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Identify Record Numbers

In Sierra, all records have a unique record number comprised of a record type indicator, 7 digits, and an 8th check digit.

Record type indicators:

  • b: Bibliographic or title record
  • i: Item or copy record
  • o: Order record
  • p: Patron record

Examples of record numbers displayed in Sierra:


  1. Enter or select the record number index, represented by a “.”
  2. Enter the record type indicator
  3. Enter the 7-digit record number
  4. Enter the check digit. If unknown, enter the check digit wildcard “a”

Examples: