diff --git a/src/ReC.Application/RecActions/Commands/InvokeRecActionCommand.cs b/src/ReC.Application/RecActions/Commands/InvokeRecActionCommand.cs
index 6a3fced..18d4c94 100644
--- a/src/ReC.Application/RecActions/Commands/InvokeRecActionCommand.cs
+++ b/src/ReC.Application/RecActions/Commands/InvokeRecActionCommand.cs
@@ -64,17 +64,24 @@ public class InvokeRecActionCommandHandler(
             case "API Key":
                 if (action.EndpointAuthApiKey is string apiKey && action.EndpointAuthApiValue is string apiValue)
                 {
-                    if (action.EndpointAuthApiKeyAddTo == ApiKeyLocation.Header)
+                    switch (action.EndpointAuthApiKeyAddTo)
                     {
-                        httpReq.Headers.Add(apiKey, apiValue);
-                    }
-                    else // Defaults to Query String
-                    {
-                        var uriBuilder = new UriBuilder(httpReq.RequestUri!);
-                        var query = System.Web.HttpUtility.ParseQueryString(uriBuilder.Query);
-                        query[apiKey] = apiValue;
-                        uriBuilder.Query = query.ToString();
-                        httpReq.RequestUri = uriBuilder.Uri;
+                        case ApiKeyLocation.Header:
+                            httpReq.Headers.Add(apiKey, apiValue);
+                            break;                        
+                        case ApiKeyLocation.Query:                        
+                            var uriBuilder = new UriBuilder(httpReq.RequestUri!);
+                            var query = System.Web.HttpUtility.ParseQueryString(uriBuilder.Query);
+                            query[apiKey] = apiValue;
+                            uriBuilder.Query = query.ToString();
+                            httpReq.RequestUri = uriBuilder.Uri;
+                            break;
+                        default:
+                            throw new DataIntegrityException(
+                                $"The API key location '{action.EndpointAuthApiKeyAddTo}' is not supported. " +
+                                $"ProfileId: {action.ProfileId}, " +
+                                $"Id: {action.Id}"
+                            );
                     }
                 }
                 break;