Demo9.Features

Here’s a complete implementation for a custom marketing automation action type in Sitecore 9 that logs a contact’s engagement score when they visit a specific page. This example includes the C# class, configuration files, and deployment steps.

**Custom Action Class (C#):**
```csharp
using Sitecore.Analytics.Automation.Actions;
using Sitecore.Analytics.Automation.Data;
using Sitecore.Analytics.Model;
using Sitecore.Diagnostics;

namespace MySitecoreExtensions.MarketingAutomation
{
    public class LogEngagementScoreAction : IAction
    {
        public IActionResult Execute(IActionContext context)
        {
            try
            {
                // Retrieve the contact's engagement score
                var engagementScore = context.Contact.GetFacet<IContactBehaviorProfile>()?.EngagementValue ?? 0;
                
                // Log the engagement score to the console (or a custom log provider)
                Log.Info($"[Marketing Automation] Contact {context.Contact.ContactId} has an engagement score of {engagementScore}. Triggered by page visit: {context.Session.PageEventData?.ItemId}", this);
                
                // Optionally, store the score in a custom facet
                var customFacet = context.Contact.GetFacet<ICustomEngagementFacet>() ?? context.Contact.AddFacet<ICustomEngagementFacet>();
                customFacet.LastLoggedScore = engagementScore;
                customFacet.LastTriggeredAction = "LogEngagementScoreAction";
                
                return new SuccessResult();
            }
            catch (Exception ex)
            {
                Log.Error($"Failed to execute LogEngagementScoreAction for contact {context.Contact.ContactId}", ex, this);
                return new FailureResult(ex.Message);
            }
        }
    }
}
```

**Configuration (App_Config/Include/MySitecoreExtensions/MarketingAutomation.config):**
```xml
<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
  <sitecore>
    <marketingAutomation>
      <actions>
        <action id="{YOUR-GUID-HERE}" type="MySitecoreExtensions.MarketingAutomation.LogEngagementScoreAction, MySitecoreExtensions" name="Log Engagement Score" description="Logs the contact's engagement score when triggered." />
      </actions>
    </marketingAutomation>
  </sitecore>
</configuration>
```

**Deployment Steps:**
1. Compile the custom action class into a DLL and deploy it to your Sitecore instance’s `bin` folder.
2. Create a custom facet (if needed) by defining it in a Sitecore facet model and deploying it via a Sitecore package or serialization.
3. Update the `MarketingAutomation.config` file with the correct GUID for the action and deploy it to the `App_Config/Include` folder.
4. Restart the Sitecore Marketing Automation Engine service to apply changes.
5. In the Sitecore Marketing Automation app, create a new automation plan, add your custom action, and configure the trigger (e.g., a page visit with a specific event).

**Testing:**
- Trigger the automation plan by visiting a page configured to fire the event.
- Verify the engagement score is logged in the Sitecore logs or stored in the custom facet.

This implementation ensures the action is reusable, handles errors, and integrates seamlessly with Sitecore’s marketing automation pipeline.