# Building Segments Based on Contact ID
**URL:** https://forum.mautic.org/t/building-segments-based-on-contact-id/23872
**Category:** Product Support
**Created:** [April 25, 2022, 8:32am UTC](https://forum.mautic.org/t/building-segments-based-on-contact-id/23872 "2022-04-25T08:32:11Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@mikew](https://forum.mautic.org/u/mikew)
#### Post date: [April 25, 2022, 8:32am UTC](https://forum.mautic.org/t/building-segments-based-on-contact-id/23872/1 "2022-04-25T08:32:11Z")
Does anyone know if there is anyway to build a segment based on contact id.
We need to build certain size segments and would like to be able to build them with filters like contact\_id \> 1 and contact\_id \< 100.
I have checked out the SQL plugin, however from what I can see this only works inside a campaign.
Our main issue with using this is we are running a client with close to 1M contacts, so if we were to use this inside a number of campaigns this would still take a very long time to update each campaign and then to even trigger these events in each campaign
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### Author:  [@joeyk](https://forum.mautic.org/u/joeyk)
#### Post date: [April 25, 2022, 8:49am UTC](https://forum.mautic.org/t/building-segments-based-on-contact-id/23872/2 "2022-04-25T08:49:10Z")
You want to create contact ID based segments because you want to run multi thread campaigns or paralell execute things?
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### Author:  [@mikew](https://forum.mautic.org/u/mikew)
#### Post date: [April 25, 2022, 8:54am UTC](https://forum.mautic.org/t/building-segments-based-on-contact-id/23872/3 "2022-04-25T08:54:29Z")
if I understand my needs correctly parallel execute things.
My main issue to be more specific is we have a limitation of sending out around 10K SMS per hour, however if I split this into separate campaigns with separate sms messages, then I am able to send out 10K multiplied by the number of campaigns I have set up for that specific hour
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### Author:  [@joeyk](https://forum.mautic.org/u/joeyk)
#### Post date: [April 25, 2022, 10:40am UTC](https://forum.mautic.org/t/building-segments-based-on-contact-id/23872/4 "2022-04-25T10:40:40Z")
I think you are better off multi-threading.
mautic:campaigns:trigger [options]
Options:
-i, --campaign-id[=CAMPAIGN-ID]
Trigger events for a specific campaign. Otherwise, all campaigns will be triggered.
–campaign-limit[=CAMPAIGN-LIMIT]
Limit number of contacts on a per campaign basis
–contact-id[=CONTACT-ID]
Trigger events for a specific contact.
–contact-ids[=CONTACT-IDS]
CSV of contact IDs to evaluate.
–min-contact-id[=MIN-CONTACT-ID]
Trigger events starting at a specific contact ID.
–max-contact-id[=MAX-CONTACT-ID]
Trigger events starting up to a specific contact ID.
–thread-id[=THREAD-ID]
The number of this current process if running multiple in parallel.
–max-threads[=MAX-THREADS]
The maximum number of processes you intend to run in parallel.
–kickoff-only
Just kickoff the campaign
–scheduled-only
Just execute scheduled events
–inactive-only
Just execute scheduled events
-l, --batch-limit[=BATCH-LIMIT]
Set batch size of contacts to process per round. Defaults to 100. [default: 100]
-f, --force
Force execution even if another process is assumed running.
–bypass-locking
Bypass locking.
-t, --timeout=TIMEOUT
You can divide the ids into ranges and execute accordingly.
I have a proof of concept of this already working, but haven’t got time to do a nicer version.
It works similar to the smart segment script I wrote.
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### Author:  [@pierre\_a](https://forum.mautic.org/u/pierre_a)
#### Post date: [April 25, 2022, 4:29pm UTC](https://forum.mautic.org/t/building-segments-based-on-contact-id/23872/5 "2022-04-25T16:29:16Z")
Hello @mikew,
> [@mikew](#):
>
> My main issue to be more specific is we have a limitation of sending out around 10K SMS per hour, however if I split this into separate campaigns with separate sms messages, then I am able to send out 10K multiplied by the number of campaigns I have set up for that specific hour
You can solve this point with what @joeyk proposes or you can see with your SMS provider to make this limit evolve 😉
For my part, I have a provider to whom I send the volume I need AND he will then smooth this volume over time. Everyone has a role to play.
Pierre
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### Author:  [@joeyk](https://forum.mautic.org/u/joeyk)
#### Post date: [April 26, 2022, 4:54am UTC](https://forum.mautic.org/t/building-segments-based-on-contact-id/23872/6 "2022-04-26T04:54:46Z")
Hi, thank you formyour imput.
This is not about the sms limits.
Its about Mautic capability to process campaigns fast enough.
If Mautic can process 2500 steps / min, then 1 mill contact takes 400 minutes = over 6,5 hours.
But if you process in 6 threads by limiting each thread to a certain id range, then u can do it in over 1 hour.