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Support Article

Duplicates extracted using use last updated time as start



Running a BIX extraction using the "Use Last Updated Time as Start" filter. There are some instances that are extracted on both the first and second runs of the extract rule even though they have not been updated a second time.

Error Messages

Not Applicable

Steps to Reproduce

Run the extract rule 2 times and see that that any instance that is created or updated within 5 minutes of the first extract run is included in both runs.

Root Cause

This issue was determined to be a product enhancement request. The first run will always extract all instances. The extraction run time is set to 5 minutes prior to the start of the extraction. On subsequent runs the extract will use a start time of the last time the extraction ran as the start time. As with the first run the end time/extraction run time is set to 5 minutes prior to the start of the extraction.

From the BIX User's Guide:
For classes that include the property pxUpdateDateTime, check the Use Last Updated time as Start checkbox to extract all data that was created or updated since the last time the Extract rule ran, up to five minutes prior to the start of the extract. This assumes that engine startup from the command line takes five minutes. This control is not relevant until the Extract rule has run at least once.


An enhancement request, FDBK-18751, has been created for consideration by Pega Product Management. The enhancement request is that the first extraction only extract up until the current time minus 5 minutes as it does on subsequent runs.

Suggest Edit

Published March 26, 2017 - Updated December 2, 2021

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