On This Page

{#jumplink-list}  
[Markdown](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa-sdk-intro/pa-sdk-overview.md)  
Filter  
FILTER BY TAG

Implementation Overview {#concept_knf_xny_wpb}
==============================================

Notify your account representative that you want to implement payer authentication (EMV `3-D Secure`). Give the representative the merchant ID that you will use for testing. For more information, see [Payer Authentication Merchant Workflow](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa2-intro-intro/pa2-intro-process-overview.md "").  
IMPORTANT The SDK integration operates in a similar manner to the Direct API integration, but SDK does not have a Setup service step.  
Implementation tasks include:

* Download, import, and configure the Mobile SDK for either iOS or Android.
* For each purchase request:
  * Build the authentication request.
  * Invoke the authentication.
  * Handle declines.
  * Make another back-end, server-to-server call to request these services:  
    : Payer Authentication Validation  
    : Card Authorization service (optional)
    {#concept_knf_xny_wpb_ul_n3m_s1z_wpb}
* Use the test cases to test your preliminary code and make appropriate changes. See [Testing Payer Authentication](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa-testing-intro.md "").
* Ensure that your account is configured for production.

{#concept_knf_xny_wpb_ul_h4z_hqy_wpb}  
Note that calling the Payer Authentication Setup Service is not required with the SDK mobile version.  
RELATED TO THIS PAGE