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Strong Customer Authentication (SCA)

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What Is SCA

Strong Customer Authentication (SCA) is a mechanism to fight online fraud and, as of September 14th, 2019, is mandatory in the European Economic Area (EEA).

By enabling SCA, Synthesis will pass additional information to the payment processor, which will pass that information to card issuer. The issuer may request additional information through a 3D Security process.

Setup steps:

  1. Login to your Square account:
  2. Go to your application details:
  3. Scroll down to “API Version” and click on the “Change Version” button. Select the latest version and save the change.
  4. Edit your SynthesisVR web widgets and change the “Template Version” to 6 or newer.

Important: any customer profiles created prior migrating to SCA may (or may not) require re-authentication – it is up to the card issuer. If an automated payment is failing, your customers have to access one of your booking widgets, progress to step 3 and “Edit” and save their CC information.


Details Coming Soon

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