diff --git a/src/ReC.API/Controllers/RecActionController.cs b/src/ReC.API/Controllers/RecActionController.cs
index 2609cce..f158983 100644
--- a/src/ReC.API/Controllers/RecActionController.cs
+++ b/src/ReC.API/Controllers/RecActionController.cs
@@ -19,7 +19,7 @@ public class RecActionController(IMediator mediator) : ControllerBase
     /// <returns>An HTTP 202 Accepted response indicating the process has been started.</returns>
     [HttpPost("invoke/{profileId}")]
     [ProducesResponseType(StatusCodes.Status202Accepted)]
-    public async Task<IActionResult> Invoke([FromRoute] long profileId, [FromBody] InvokeReferences? references = null, CancellationToken cancel = default)
+    public async Task<IActionResult> Invoke([FromRoute] long profileId, [FromBody] InvokeReferences references, CancellationToken cancel = default)
     {
         await mediator.Send(new InvokeBatchRecActionViewsCommand
         {
diff --git a/src/ReC.Application/RecActions/Commands/InvokeBatchRecActionViewsCommand.cs b/src/ReC.Application/RecActions/Commands/InvokeBatchRecActionViewsCommand.cs
index 96667d9..c44e927 100644
--- a/src/ReC.Application/RecActions/Commands/InvokeBatchRecActionViewsCommand.cs
+++ b/src/ReC.Application/RecActions/Commands/InvokeBatchRecActionViewsCommand.cs
@@ -9,7 +9,7 @@ namespace ReC.Application.RecActions.Commands;
 public record InvokeBatchRecActionViewsCommand : IRequest
 {
     public long ProfileId { get; init; }
-    public InvokeReferences? References { get; init; }
+    public required InvokeReferences References { get; init; }
 }
 
 public class InvokeRecActionViewsCommandHandler(ISender sender, ILogger<InvokeRecActionViewsCommandHandler>? logger = null) : IRequestHandler<InvokeBatchRecActionViewsCommand>
diff --git a/tests/ReC.Tests/Application/Results/ResultProcedureTests.cs b/tests/ReC.Tests/Application/Results/ResultProcedureTests.cs
index 9839b52..36016ce 100644
--- a/tests/ReC.Tests/Application/Results/ResultProcedureTests.cs
+++ b/tests/ReC.Tests/Application/Results/ResultProcedureTests.cs
@@ -6,6 +6,7 @@ using NUnit.Framework;
 using ReC.Application.Common.Procedures.DeleteProcedure;
 using ReC.Application.Common.Procedures.InsertProcedure;
 using ReC.Application.Common.Procedures.UpdateProcedure;
+using ReC.Application.RecActions.Commands;
 using ReC.Application.Results.Commands;
 using ReC.Domain.Constants;
 using ReC.Tests.Application;
@@ -25,7 +26,7 @@ public class ResultProcedureTests : RecApplicationTestBase
     [Test]
     public async Task InsertResultProcedure_runs_via_mediator()
     {
-        var procedure = new InsertResultCommand { ActionId = 1, Status = HttpStatusCode.OK.ToRecStatus(), Header = "h", Body = "b", Info = 200, Type = Domain.Constants.ResultType.Main };
+        var procedure = new InsertResultCommand { ActionId = 1, Status = HttpStatusCode.OK.ToRecStatus(), Header = "h", Body = "b", Info = 200, Type = ResultType.Main, References = new () { BatchId = DateTime.Now.ToString() } };
 
         var (sender, scope) = CreateScopedSender();
         using var _ = scope;