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

# Map the Catalogue

> The process of mapping a source defines all attributes such as identifiers, traits, consent, events and more, that can be ingested into your Zeotap account. By mapping a source, you can standardise the disparate data coming from different source attributes to a common Zeotap catalogue field. Thereby, creating a single view of your customer data.

The Zeotap Catalogue comes with standard and universal identifiers and attributes as part of your Zeotap account. However, it provides you with the flexibility to define and create your own data schema based on the custom or standard information captured across sources. Note that you can only map a source that has moved to the **Integrated** state.

<Note>
  **Note:**

  Once a source is mapped and saved, ingestion for streaming sources may take up to **15 minutes** to begin. This initial delay accounts for processing data collected between the time the source was integrated and when it was mapped. Afteringestion starts, all subsequent records are ingested in real time.

  While for batch sources, ingestion of each file may take up to **15 minutes** to start from the time the file is dropped.

  The catalogue fields of type `Non-Customer Entity` can only be used for NCE sources. If there is a common attribute
  between NCE and other data entity types, then we recommend that you create a separate field for the NCE data to avoid
  any conflicts.
</Note>

To learn how to map the Catalogue for Customer Data and Non-Customer Entity Data, refer below.

<CardGroup>
  <Card title="Map the Catalogue for Customer Data" href="/articles/unify-customer/map-the-catalogue-for-customer-data" icon="angles-right" iconType="solid" horizontal={true} />

  <Card title="Map the Catalogue for Non-Customer Entity Data" href="/articles/unify-customer/map-the-catalogue-for-non-customer-entity-data" icon="angles-right" iconType="solid" horizontal={true} />
</CardGroup>

<Note>
  **Note:**

  Once a source is mapped and saved, ingestion for streaming sources may take up to **15 minutes** to begin. This initial delay accounts for processing data collected between the time the source was integrated and when it was mapped. Afteringestion starts, all subsequent records are ingested in real time.

  While for batch sources, ingestion of each file may take up to **15 minutes** to start from the time the file is dropped.

  The catalogue fields of type `Non-Customer Entity` can only be used for NCE sources. If there is a common attribute
  between NCE and other data entity types, then we recommend that you create a separate field for the NCE data to avoid
  any conflicts.
</Note>