Changing environment variables in the dashboard usually does NOT automatically trigger a redeploy or build.

(Except in some rare, advanced configurations)

After changing an environment variable, always manually trigger a redeploy (or restart) if you want the new value to be picked up by your app.

On Railway:

Go to your service → click “Redeploy” (or “Restart” if it’s an always-on service).

Or, you can push a dummy commit to GitHub (like updating a comment) if you want to automate via code.

If you want a deploy to trigger whenever env variables are changed, you’ll need to:

Use Railway’s API (if available) to script a redeploy after env changes. Or, use GitHub Actions or similar to trigger a deploy command.

But for almost all normal cases, manually redeploying after changing env vars is the standard workflow.

1.If You Store Env Vars in GitHub.

Secrets needed in GitHub repo:

RAILWAY_API_TOKEN

RAILWAY_PROJECT_ID

RAILWAY_SERVICE_ID

.github/workflows/redeploy-on-env-change.yml:

name: Redeploy on Env Change

on:
  push:
    paths:
      - '.env'
      - 'your/env/dir/*.env'  # Add more paths if you have multiple env files

jobs:
  redeploy:
    runs-on: ubuntu-latest
    steps:
      - name: Trigger Railway Deploy via API
        run: |
          curl -X POST https://backboard.railway.app/graphql/v2 \
            -H "Authorization: Bearer ${{ secrets.RAILWAY_API_TOKEN }}" \
            -H "Content-Type: application/json" \
            -d '{
              "query": "mutation DeployService($input: DeployServiceInput!) { deployService(input: $input) { id status } }",
              "variables": {
                "input": {
                  "projectId": "'"${{ secrets.RAILWAY_PROJECT_ID }}"'",
                  "serviceId": "'"${{ secrets.RAILWAY_SERVICE_ID }}"'"
                }
              }
            }'

It wasn't like that before. It was automatic.

Hey, Railway will automatically redeploy your service if it detects changes for any environment/service variable. What you have experienced may be related to an incident regarding builds.