# Lean Disposable

This guide helps you quickly integrate Lean Disposable into your application to enroll and use disposable certificates for secure digital signatures.

## Documentation Structure

This documentation is organized into the following sections:

### Get Started

- [Quick start](/products/leandisposable/enterprise-documentation/get-started/get-started) guides and initial setup instructions to begin using Lean Disposable.


### Developer documentation

- **API References**: complete technical documentation of REST and SOAP APIs, including:
  - [Enroll methods](/products/leandisposable/enterprise-documentation/developer-documentation/api-references/lean-enroll)
  - [Check data methods](/products/leandisposable/enterprise-documentation/developer-documentation/api-references/lean-checkdata)
  - [Send OTP methods](/products/leandisposable/enterprise-documentation/developer-documentation/api-references/lean-send-otp)
  - [Document methods](/products/leandisposable/enterprise-documentation/developer-documentation/api-references/lean-documents)
  - [Error methods](/products/leandisposable/enterprise-documentation/developer-documentation/api-references/lean-errors)
  - [Data objects](/products/leandisposable/enterprise-documentation/developer-documentation/api-references/data-objects) and [enum types](/products/leandisposable/enterprise-documentation/developer-documentation/api-references/lean-enum-types)
- **Integration Guide**: common integration scenarios and best practices:
  - [Workflow overview](/products/leandisposable/enterprise-documentation/developer-documentation/integration-guide/lean-ig-workflow)
  - [How to handle errors](/products/leandisposable/enterprise-documentation/developer-documentation/integration-guide/lean-ig-how-to-handle-errors)
  - Enrollment scenarios (OTP by SMS, email, no OTP, external OTP, eID assertion, AML)


### Release Notes

Version history and changelog of Lean Disposable updates and improvements.