Slicker provides a flexible API-based integration for custom in-house billing systems, allowing businesses with proprietary or unique billing solutions to benefit from our advanced retry optimization and revenue recovery capabilities.

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How Custom Billing Integration Works

With a custom billing integration, Slicker acts as a decision engine for your billing system, determining the optimal timing and strategy for payment retries. This data-driven approach significantly improves recovery rates compared to static retry schedules.

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Integration Flow

  1. Data Ingestion: Your system sends subscription, invoice, and transaction event data to Slicker’s API endpoints.
  2. Payment Data Enrichment: Optionally connect your payment processors directly to Slicker for enhanced data quality.
  3. Intelligent Analysis: Slicker analyzes payment failures, customer behavior, and numerous other factors.
  4. Optimized Retry Execution: When Slicker determines a retry should occur:
    • Slicker sends a webhook notification to your endpoint with retry instructions
    • Alternatively, your system can query Slicker’s API to check when retries should be performed

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Integration Requirements

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Your Responsibilities

  1. Event Transmission: Implement API calls to send subscription, invoice, and transaction events to Slicker
  2. Data Mapping: Map your system’s data fields to Slicker’s expected format
  3. Webhook Endpoint: Create an endpoint to receive retry instructions from Slicker
  4. Retry Execution: Hook up the Slicker retry decision with your existing logic to execute retries. At this step you can perform further checks based on your business requirements if a retry should be executed.

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Data Requirements

While most fields are optional, the quality of Slicker’s recovery strategies improves with the richness of data provided:
  • Essential Events: Subscription creations/changes, invoice generation, payment attempts
  • Valuable Context: Customer history, subscription details, failure reasons
  • Complete Details: See the API Reference for comprehensive field specifications

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Setup Process

Setting up a custom billing integration typically follows these steps:
1

Initial Consultation

Meet with Slicker’s integration team to discuss your specific needs and system architecture.
2

API Implementation

Develop the necessary API calls to send event data to Slicker and receive retry instructions.
3

Testing and Validation

Verify data accuracy and webhook functionality in a test environment.
4

Progressive Rollout

Start with a subset of accounts to validate performance before full deployment.

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Historical Data Sync

While Slicker can start working with new incoming data immediately, syncing historical data significantly improves the effectiveness of our recovery strategies from day one:

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Benefits of Historical Data

  • Faster Learning: Slicker’s algorithms can immediately analyze past payment patterns and failures
  • Better Initial Results: Recovery strategies are optimized from the start rather than requiring a learning period
  • Complete Customer Context: Full payment history provides crucial context for decision-making

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Sync Options

  • Standard API: The same APIs used for ongoing data can be used to sync historical events
  • Bulk Import: For large data volumes, our integration team can work with you on custom bulk import solutions
  • Selective History: Even partial history (e.g., last 3-6 months) provides significant benefits
The Slicker integration team will help determine the optimal amount of historical data to sync based on your business model and data volume.

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Engineering Support

We understand that implementing a custom integration requires engineering resources. Slicker provides:
  • Dedicated integration specialists to guide your team
  • Documentation and code samples to accelerate development
  • Technical consultation throughout the implementation process
  • Ongoing support post-implementation
For optimal results, we highly recommend also integrating your payment processors directly with Slicker. This provides essential payment error details that significantly improve recovery rates. See our payment provider integrations for more information.

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Next Steps

To begin your custom billing integration:
  1. Review our API Reference to understand data requirements
  2. Contact our team to schedule an integration consultation
  3. Explore connecting your payment processors for enhanced results