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994 OCLC-MARC Transaction Code (NR)

Record Type
BIB
Input Standards
Field (Full/Minimal)
System supplied/System supplied
1st Indicator Undefined
	Undefined
2nd Indicator Undefined
	Undefined
Subfields (R=Repeatable NR=Nonrepeatable)		Input Standards (Full/Minimal)
ǂa	Transaction code (NR)	System supplied/System supplied
ǂb	Institution symbol (NR)	System supplied/System supplied

Definition

Field 994 contains a system-generated code that identifies the user-initiated transaction performed on the record. The field is generated on export or included in records delivered via other OCLC services. This field cannot be edited or input manually.

For information on punctuation, see the Punctuation section below.

History

The history of the fields in which transaction codes have been stored:

Date	Transaction codes stored in
Before June 6, 1999	Leader byte 22 (Transaction Type Code)
June 6, 1999-December 31, 1999	Field 994 and Leader byte 22 Note: This was the transitional period during which field 994 was implemented in various OCLC products and services at various times. Transaction codes continued to be stored in Leader byte 22 during this time.
January 1, 2000-November 11, 2006	Field 994 and Leader byte 22
November 12, 2006-present	Field 994 Note: Connexion client 1.60 used both field 994 and Leader byte 22 until it was discontinued on April 1, 2007.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank.

	Undefined

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank.

	Undefined

Subfields

ǂa Transaction code

A two-character code that identifies the transaction performed on the record. Transaction codes and types are given below:

Code	Type
01	Produce and update holdings
02	Update holdings
03	Delete holdings
10	Add record
11	Replace record
12	Delete record
50	All produce (alternate produce)
90	Offline retrieve
91	Offline produce
92	Offline update WorldShare Collection Manager WorldCat cataloging partner collections WorldShare Collection Manager WorldCat query collections WorldShare Collection Manager WorldCat updates WorldShare Collection Manager WorldCat knowledge base collections WorldShare Collection Manager data sync collections WorldCat record output
93	Offline delete holdings WorldShare Collection Manager delete record
A1	Bibliographic Record Snapshot (formerly, Local Database Creation) or PRISM Keying Service record creation [Discontinued services]
C0	Exported from Connexion or WorldShare Record Manager
E0	Exported from OCLC Cataloging Service (formerly, e)
X0	Exported from CatME or OCLC CJK (formerly, x) [Discontinued services]
Z0	Z39.50 Cataloging records

ǂb Institution symbol

OCLC institution symbol for the institution associated with the transaction.

Punctuation

Omit all punctuation in field 994.

For more information on punctuation, including OCLC policy, see section 2.8, Punctuation.

Indexing

Field 994 is not indexed.

MARC 21

Field 994 is OCLC-defined and therefore not included in MARC 21 Format for Bibliographic Data.

This page last revised: August 27, 2020

9xx Fields