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

# Edit the datatype of a field in a stream

![](https://usercontent.clueso.io/1f4455e0-789e-4beb-8cd9-4dac96bc47e4/8fce304f-0ade-49ab-baad-26fb6f03ba86/0979ed9e-52dc-4740-b41d-7f0886e4abf8/images/4dae19ac-9248-4ef2-9456-d3bf5d6351ea.gif)

To edit the datatype of a field in an existing stream in Bytebeam console,

<Steps>
  <Step title="Access Settings Tab">
    Navigate to the **Settings** Tab by clicking on your username at the top right
  </Step>

  <Step title="Locate the Target Stream and Field">
    Go to **Streams** tab and locate the field for which the datatype needs to be changed
  </Step>

  <Step title="Initiate the Datatype edit">
    Click on the **Edit** icon at the chosen field and select the desired datatype from the dropdown menu and click on the **Save** icon
  </Step>

  <Step title="Confirm the selection">
    Type field name in the field, and Click on **Confirm** to edit the datatype of the field.
  </Step>
</Steps>

<Warning>You can modify a field's datatype, but certain restrictions apply. For example, changing a nullable datatype to a non-nullable datatype is not permitted.</Warning>