> ## Documentation Index
> Fetch the complete documentation index at: https://docs.frankieone.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Object IDs

> Every object in our API is assigned a unique, unversioned GUID (Globally Unique Identifier) upon creation. These IDs are essential for performing operations on specific resources.

## Understanding Object IDs

When you create a new resource through our API, the response will always include an automatically generated ID. This ID serves as the primary identifier for that resource in all subsequent API operations.

## Using Object IDs

Object IDs are required when you need to:

* Retrieve specific resources
* Update existing resources
* Delete resources
* Create relationships between resources

## Resources with Unique IDs

<CardGroup cols={2}>
  <Card title="Core Resources" icon="users">
    * Customers
    * Entities
    * Documents
    * Addresses
  </Card>

  <Card title="Transaction Resources" icon="money-bill-transfer">
    * Document scans
    * Checks
    * Batches
    * Transaction groups
  </Card>
</CardGroup>

<Callout icon="star" color="#3DD892" iconType="regular">
  Always store these IDs in your system when creating new resources. You'll need
  them for future API operations.
</Callout>