# DT3 Pro - duplicates bulk delete

**URL:** <https://discourse.devontechnologies.com/t/dt3-pro-duplicates-bulk-delete/50315>\
**Category:** DEVONthink\
**Created:** [September 23, 2019, 2:50pm UTC](https://discourse.devontechnologies.com/t/dt3-pro-duplicates-bulk-delete/50315 "2019-09-23T14:50:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mog](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/m/82dd89/32.png) [@mog](https://discourse.devontechnologies.com/u/mog)\
**Post date:** [September 23, 2019, 2:50pm UTC](https://discourse.devontechnologies.com/t/dt3-pro-duplicates-bulk-delete/50315/1 "2019-09-23T14:50:16Z")

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Having moved items from one database to another, I am having a clear out of duplicate items, 2981 items. Using smart rule Filter Duplicates, when I Select All and then delete DT3 won’t let me. But when I select a few items and then delete DT3 will. Is that expected behaviour?

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**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [September 23, 2019, 3:00pm UTC](https://discourse.devontechnologies.com/t/dt3-pro-duplicates-bulk-delete/50315/2 "2019-09-23T15:00:19Z")

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The number of selected items shouldn’t matter. But removing duplicates that way isn’t recommended as your removing all duplicates that way. Instead you could select the items and use Scripts \> Data \> Move Duplicates to Trash…

This script ensures that one copy of each document will remain in the database.

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**Author:** ![mog](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/m/82dd89/32.png) [@mog](https://discourse.devontechnologies.com/u/mog)\
**Post date:** [September 23, 2019, 3:03pm UTC](https://discourse.devontechnologies.com/t/dt3-pro-duplicates-bulk-delete/50315/3 "2019-09-23T15:03:56Z")

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Noted, thank you.

All done