Why am I missing MARC files from my record delivery?
Applies to
- WorldShare Collection Manager
Answer
- Titles must have OCLC numbers to output records.
- Titles must have an OCLC number (OCN). A title might be missing an OCLC number if:
- No record exists for the item in WorldCat
- A record exists but because of the complexities of cataloging electronic items, it is not classified as an electronic resource in a way that corresponds to the knowledge base’s matching process
- There are 2 options for viewing gaps in OCLC number coverage:
- Option 1: The percentage of OCLC numbers in a collection is listed in this spreadsheet: Collections available in the WorldCat knowledge base
- Option 2: View OCLC number coverage by downloading a KBART file of the collection. See Report errant OCLC numbers for complete instructions
- Some titles might not meet the requirements for record output. Format, coverage value, and title URL requirements
- Titles must:
- Have an OCLC number and have a URL/856 and be of a readable format and coverage (i.e., journal [fulltext, print], ebook, and so forth), or
- Have an OCLC number and have a coverage value of other or print (but lack a URL/856)
- A title is in multiple collections.
- Titles are often available through more than one provider. If you have a title in multiple knowledge base collections, Collection Manager will deliver a single record for the knowledge base title and the record will have multiple URLs.
- If all of your records are delivered in one file and you hold a title in several knowledge base collections, you will get one record for the title. To have records output in a separate collection, see Collection-level settings in knowledge base collections, Delivery File Output.
- There are duplicate entries for the same title in a collection.
- This occurs when a provider wants to include different coverage depths for the same records. Your MARC delivery file will generate one MARC record per OCLC number. For example, a collection could say it has a 100 titles, but half of them are duplicates with the same OCLC number to include two coverage depths: eBook and full text.
There are several reasons you could get a different number of MARC records than that on your title list from a provider:
- Though OCLC and its partners work closely together to ensure a record for every e-resource title, there may be variances in the number of records received because some partner delivery programs are tied to customer holdings rather than sales history
- Records may be in OCLC's cataloging queue depending upon how partner metadata feeds coincide with titles' street dates
- Past cataloging practices concerning multi-volume titles may have recommended a set record with multiple URLs being used for multi-volume titles
- Titles are often available through more than one provider. If you have a title in multiple knowledge base collections, Collection Manager will deliver a single record for the knowledge base title and the record will have multiple URLs. If all of your records are delivered in one file and you hold a title in several knowledge base collections, you will get one record for the title.