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

# POS Integration Guides

Comprehensive guides for integrating ClearLine's marketing platform with your Point of Sale system. Learn how to implement customer engagement workflows, loyalty programs, and real-time promotions at checkout.

## Integration Workflows

<CardGroup cols={2}>
  <Card title="Cloud Messaging System Events" icon="cloud" href="/pos-integration/cloud-messaging-system-events">
    Real-time event notifications for customer interactions, transactions, and
    system updates via cloud messaging
  </Card>

  <Card title="POS Receipt Promotion" icon="receipt" href="/pos-integration/pos-receipt-promotion">
    Retrieve and display promotional offers on customer receipts to drive
    engagement and repeat purchases
  </Card>

  <Card title="Coupons" icon="ticket" href="/pos-integration/coupons">
    Sync, validate, and redeem coupons at checkout. Support for single-use and
    multi-use coupon codes
  </Card>

  <Card title="Client Credentials Grant Authorization (POS Authorization)" icon="key" href="/pos-integration/client-credentials-grant-authorization-pos-authorization">
    Server-to-server authentication for POS systems using OAuth2 client
    credentials flow
  </Card>

  <Card title="Post-purchase transaction to CMC" icon="credit-card" href="/pos-integration/post-purchase-transaction-to-cmc">
    Send completed transaction data in real-time to enable customer tracking,
    loyalty rewards, and analytics
  </Card>

  <Card title="Loyalty Program" icon="heart" href="/pos-integration/loyalty-program">
    Manage customer loyalty points, rewards redemption, and card lookups
    directly from your POS
  </Card>

  <Card title="Products Catalog Import to CMC" icon="box" href="/pos-integration/products-catalog-import-to-cmc">
    Bulk import product catalogs, categories, and pricing from your POS to
    ClearLine for marketing campaigns
  </Card>

  <Card title="New Account Registration" icon="user-plus" href="/pos-integration/new-account-registration">
    Register new customer accounts during checkout or in-store interactions with
    automated profile creation
  </Card>

  <Card title="POS System Settings" icon="gear" href="/pos-integration/pos-system-settings">
    Retrieve configuration settings, feature flags, and location-specific
    preferences for your POS system
  </Card>

  <Card title="Authorization Code Flow with PKCE (User Authorization)" icon="shield-check" href="/pos-integration/authorization-code-flow-with-pkce-user-authorization">
    Secure user authentication flow with PKCE for mobile and web applications
    requiring user consent
  </Card>

  <Card title="SSO" icon="right-to-bracket" href="/pos-integration/sso">
    Single Sign-On integration for seamless user authentication across ClearLine
    and your POS platform
  </Card>

  <Card title="QR Code Generation" icon="qrcode" href="/pos-integration/qr-code-generation">
    Generate and manage QR codes for customer engagement, digital receipts,
    loyalty programs, and marketing campaigns
  </Card>

  <Card title="SMS / Email Delivery" icon="envelope" href="/pos-integration/sms-email-delivery">
    Send automated SMS and email messages for receipts, promotions, loyalty
    updates, and customer engagement
  </Card>
</CardGroup>