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The format for the date in Replaced is yyyymmddhhmmss.f—yyyy is the year; mm, the month; dd, the day; hh the hour; mm the minute; ss the second; f the fraction of a second. You cannot change Replaced.
Replaced represents the date of the last replace transaction. Replace transactions include replaces done by batchloading processes and corrections to the record made as a part of database quality activities. These transactions result in a change in the Replaced date. Such changes are not always reflected in changes to
field 040 subfield ‡d .
For a record created online by a member institution, Replaced is the same as the
Entered date until a replace transaction is completed.
For a batchloaded record, Replaced represents the date on which that record was loaded into WorldCat, until a replace transaction is completed.
If the system replaces a member-input with a batchloaded record, the Replaced date reflects the date on which the record was replaced. The Replaced date could change again if another replace transaction is done on the record. | 
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