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

# Add customers to Zenskar

Zenskar gives you four ways to add customers, depending on your workflow:

* [Add a customer manually](#add-a-customer-manually) for one-off accounts directly through the UI.
* [Add customers in bulk via CSV](#add-customers-in-bulk-via-csv) to bring in a large list at once.
* [Add a customer via API](#add-a-customer-via-api) to create customers programmatically from your existing systems.
* [Add a customer via a connector](#add-a-customer-via-a-connector) for ongoing two-way sync with a CRM, CPQ, or ERP.

***

## Add a customer manually

1. Go to **Customers** and click **+ ADD CUSTOMER**.
2. Fill in the **Add customer** form.

<Card title="Reference" icon="link" href="/docs/20260301/product-modules/customers/reference/customers" arrow="true" cta="Learn more">
  Refer to the customer field reference.
</Card>

3. Click **Create**.

<Note>The business entity cannot be changed after the customer is created.</Note>

***

## Add customers in bulk via CSV

1. Go to **Customers**, click the dropdown arrow on **+ ADD CUSTOMER**, then click **Upload CSV**.
2. In the **Upload CSV** dialog, upload your CSV file by dragging and dropping it or clicking to browse.
3. Click **IMPORT CSV DATA**.

Your CSV must follow Zenskar's format. Download a sample file from the **Upload CSV** dialog. Remove the example "John Doe" row before importing your own data. The file needs to include an email column or a Stripe reference ID column somewhere in it; every other column is optional.

***

## Add a customer via API

Use the [create customer REST API](/docs/api-reference/customers/create-customer) to add customers programmatically.

***

## Add a customer via a connector

1. Go to **Integrations** and connect the relevant CRM, CPQ, or ERP system.
2. Follow the connector-specific documentation to enable two-way customer sync.

If you don't see the connector you need, contact [help@zenskar.com](mailto:help@zenskar.com).