Customize the error support message

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Summary: Customize support contact information in the LangSmith frontend for self-hosted deployments.

Original Documentation

Documentation Index#

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

Customize support contact information in the LangSmith frontend for self-hosted deployments.

Custom error support message#

By default, error messages in LangSmith direct users to contact support@langchain.dev. You can replace this with your own support contact information.

When set, all error and support messages throughout the UI will display your custom text instead of the default LangChain support email.

The custom message is rendered as plain text only. HTML tags will not be interpreted and will display as literal text.

config:
  customErrorSupportMessage: "For help, contact your internal IT team at helpdesk@example.com"
services:
  langchain-frontend:
    environment:
      - CUSTOM_ERROR_SUPPORT_MESSAGE=For help, contact your internal IT team at helpdesk@example.com

To revert to the default behavior, remove the setting or set it to an empty string.


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Link last verified June 7, 2026. View original ↗
Source: LangChain Docs
Link last verified: 2026-04-05