# Importing users

**URL:** <https://meta.discourse.org/t/importing-users/299772>\
**Category:** Migration\
**Created:** [March 18, 2024, 7:57am UTC](https://meta.discourse.org/t/importing-users/299772 "2024-03-18T07:57:30Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![Isambard](https://avatars.discourse-cdn.com/v4/letter/i/858c86/32.png) [@Isambard](https://meta.discourse.org/u/Isambard)\
**Post date:** [March 18, 2024, 7:57am UTC](https://meta.discourse.org/t/importing-users/299772/1 "2024-03-18T07:57:30Z")

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In the importation scripts (at least the CSV one), I see that there is an option to add a prefix to the user id - presumably to avoid clashing with existing user ids.

Let’s say I have current 500 users on discourse and I want to import 1000 users via the CSV script. Let’s say I use a prefix of ‘1’ for the import script so the new users have userid 1000 to 2000.

What happens when the organic signups hit userid 1000? Would this create any issue or would the software automatically add the new user to id 2001?

I’m trying to work out if I need to put a very high prefix to avoid this issue.

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