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

# Create a source

> Add a data source, and link it to the sources it shares entry IDs with.

<Steps>
  <Step title="Press New data source">
    On the **Sources** tab, press **New data source** in the upper right corner.
  </Step>

  <Step title="Fill in the details">
    <img src="https://mintcdn.com/occtoo/sUfE5BC3k8ruY9JQ/images/guides/studio/sources/new-source-dialog.png?fit=max&auto=format&n=sUfE5BC3k8ruY9JQ&q=85&s=e774c395f3a5da7474fa3d23f9152f9d" alt="The New source dialog" width="512" height="460" data-path="images/guides/studio/sources/new-source-dialog.png" />

    * **Name** — required, and unique across sources.
    * **Description** — optional.
    * **Shares ID with** — optional. The sources whose entry IDs match this one's. You can leave it empty and set it later.

    <Info>
      There is no identifier field. Occtoo derives the source identifier from the name: it strips any leading non-letters and camel-cases the rest, so "Variant from PIM" becomes `variantFromPim`. That identifier is what the ingest API and destinations use.
    </Info>

    <Warning>
      The identifier is fixed at creation. Renaming the source later changes the display name only — the identifier keeps its original value. Pick the name with that in mind.
    </Warning>
  </Step>

  <Step title="Save">
    Press **Save**. **Save** stays disabled until you change something. Occtoo creates the source and opens it, so you land straight on the new source page.
  </Step>
</Steps>

## Sharing IDs

Two sources share IDs when the same entry ID means the same thing in both — for example an article number that exists in both a PIM source and an ERP price source. Linking them lets a card pull properties from both and present one entry.

## Next

A new source is empty. To get data into it, either grant a data provider access to it and call the ingest API ([Import data](/guides/studio/sources/import-data)), or upload a CSV ([Import data from a CSV file](/guides/studio/sources/manual-import)).