Sitecore Forms Submit action allowing to map Contact facets to form fields and update it via xConnect:

This is implementation of Update Contact submit action for Sitecore 9 Forms described in: https://doc.sitecore.net/sitecore_experience_platform/digital_marketing/sitecore_forms/setting_up_and_configuring/walkthrough_creating_a_custom_submit_action_that_updates_contact_details#_Create_a_submit

• In Content Management or Standalone server install Sc.UpdateContact-1.0.zip using Sitecore Installation Wizard.
• In Content Delivery copy Sc.UpdateContact.dll from package zip to bin directory

• Clone repository
• If needed update nuget packages used in Sc.UpdateContact project to match your Sitecore 9 version
• Update publishUrl to your Sitecore instance URL in publishsettings.targets file
• Update path in SourceFolderScUpdateContact variable to your local repository folder in Sc.UpdateContact.DevSettings.config file
• (Optionally) publish Serialization project from Visual Studio. This project contains Unicorn assemblies and configuration. If you already have Unicorn in your solution you can skip this step.
• Publish Sc.UpdateContact project.
• Go to {your-sitecore-instance}/unicorn.aspx and sync Foundation.Sc.UpdateContact project.