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

# Send login email to customer

> Sends an email to the customer containing a login link to the customer portal. The customer can click the link to access their portal without entering credentials. Use this for support scenarios or to help customers access their account.

Sends an email to the customer containing a one-click login link to the customer portal.

## Use Cases

* **Support**: Help customers who have trouble logging in
* **Onboarding**: Send a welcome email with direct portal access
* **Proactive Outreach**: Remind customers to update payment methods or review invoices

<Tip>
  The login link is valid for a limited time. If the customer doesn't use it, they can request a new one from the login page.
</Tip>


## OpenAPI

````yaml post /customers/{id}/send-login-email
openapi: 3.1.0
info:
  title: Fynn API
  description: ''
  termsOfService: https://www.fynn.eu/tos
  contact:
    name: Fynn UG (haftungsbeschränkt)
    url: https://www.fynn.eu
    email: hi@fynn.eu
  license:
    name: Proprietary
    url: https://www.fynn.eu/license
  version: 0.0.0
servers:
  - url: https://coreapi.io
    description: Production
  - url: https://preview.coreapi.io
    description: Sandbox
security:
  - JWT: []
tags: []
paths:
  /customers/{id}/send-login-email:
    parameters: []
    post:
      tags:
        - Customer
      summary: Send login email to customer
      description: >-
        Sends an email to the customer containing a login link to the customer
        portal. The customer can click the link to access their portal without
        entering credentials. Use this for support scenarios or to help
        customers access their account.
      operationId: sendCustomerLoginEmail
      parameters:
        - name: id
          in: path
          description: Customer identifier
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Login email sent successfully to the customer
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    example: true
                    type: boolean
        '404':
          description: Customer not found
      security:
        - JWT:
            - customer:authenticate
      x-codeSamples:
        - lang: bash
          label: cURL
          source: |-
            curl -X POST \
             /customers/{id}/send-login-email \
             --header "Authorization: Bearer <token>"
components:
  securitySchemes:
    JWT:
      type: http
      scheme: bearer

````