# Lead Assignments & Exclusivity

[leads](https://docs.glencoco.com/core-concepts/leads "mention") in [campaigns](https://docs.glencoco.com/core-concepts/campaigns "mention")  that are in any [approved](https://docs.glencoco.com/core-concepts/campaigns/glencoco-campaigns/user-auditions/user-audition-statuses/approved "mention") [caller](https://docs.glencoco.com/the-cast-of-players/caller "mention")'s [lists](https://docs.glencoco.com/core-concepts/dialing/lists "mention") are said to be "Assigned".&#x20;

The concept of lead assignment exists so that multiple [caller](https://docs.glencoco.com/the-cast-of-players/caller "mention")s cannot inadvertently reach out to leads.

{% hint style="warning" %}
At the end of every business day (9PM EST), [cold-leads](https://docs.glencoco.com/core-concepts/lead-statuses/cold-leads "mention") in lists are [unassigned](https://docs.glencoco.com/core-concepts/lead-pools/lead-assignments-and-exclusivity) and returned back to [](https://docs.glencoco.com/core-concepts/lead-pools "mention"). [nurture-leads](https://docs.glencoco.com/core-concepts/lead-statuses/nurture-leads "mention") remain [assigned](https://docs.glencoco.com/core-concepts/lead-pools/lead-assignments-and-exclusivity) until the follow up time for the nurture lead passes.
{% endhint %}

### The 3 Possible State of Leads with regards to Assignment

#### 1. Part of the campaign's shared [Lead Pool](https://docs.glencoco.com/core-concepts/lead-pools), Unassigned

Examples where this could be the case:

* [disqualified-leads](https://docs.glencoco.com/core-concepts/lead-statuses/disqualified-leads "mention") (removed from [](https://docs.glencoco.com/core-concepts/lead-pools "mention"))
* Fresh Leads that were just uploaded (and therefore, nobody has attempted to [pull those leads](https://docs.glencoco.com/core-concepts/lead-pools/pulling-leads-from-the-lead-pool))
* Leads with missing required data (for example, if a lead is missing phone number, then no point in having them in the lead pool)

#### 2. Part of the campaign's shared [Lead Pool](https://docs.glencoco.com/core-concepts/lead-pools), Assigned

#### 3. Not Part of the campaign's shared [Lead Pool](https://docs.glencoco.com/core-concepts/lead-pools), Assigned

Examples where this could be the case:

* The campaign has [self-sourcing-allowed](https://docs.glencoco.com/core-concepts/campaigns/glencoco-campaigns/campaign-controls/self-sourcing-allowed "mention") and an [approved](https://docs.glencoco.com/core-concepts/campaigns/glencoco-campaigns/user-auditions/user-audition-statuses/approved "mention") [caller](https://docs.glencoco.com/the-cast-of-players/caller "mention") has [uploaded](https://docs.glencoco.com/core-concepts/lead-ingestions/csv-uploads) a list of [self-sourced leads](https://docs.glencoco.com/core-concepts/self-sourcing-for-callers).

These are assigned, since they belong to a caller's list, but they are not part of the shared lead pool, since they were provided by the caller.
