diff --git a/src/ReC.API/Controllers/OutResController.cs b/src/ReC.API/Controllers/OutResController.cs
index 0a6390f..40e7955 100644
--- a/src/ReC.API/Controllers/OutResController.cs
+++ b/src/ReC.API/Controllers/OutResController.cs
@@ -29,6 +29,7 @@ public class OutResController(IMediator mediator, IConfiguration config) : Contr
     /// <returns>A list of output results for the fake profile.</returns>
     [HttpGet("fake")]
     [ProducesResponseType(StatusCodes.Status200OK)]
+    [Obsolete("Use the related procedure or view.")]
     public async Task<IActionResult> Get(CancellationToken cancel) => Ok(await mediator.Send(new ReadOutResQuery()
     {
         ProfileId = config.GetFakeProfileId()
@@ -43,6 +44,7 @@ public class OutResController(IMediator mediator, IConfiguration config) : Contr
     /// <returns>The requested output result or a part of it (header/body).</returns>
     [HttpGet("fake/{actionId}")]
     [ProducesResponseType(StatusCodes.Status200OK)]
+    [Obsolete("Use the related procedure or view.")]
     public async Task<IActionResult> Get([FromRoute] long actionId, CancellationToken cancel, ResultType resultType = ResultType.Full)
     {
         var res = (await mediator.Send(new ReadOutResQuery()
diff --git a/src/ReC.Application/OutResults/Queries/ReadOutResQuery.cs b/src/ReC.Application/OutResults/Queries/ReadOutResQuery.cs
index aacc634..33da8b2 100644
--- a/src/ReC.Application/OutResults/Queries/ReadOutResQuery.cs
+++ b/src/ReC.Application/OutResults/Queries/ReadOutResQuery.cs
@@ -8,6 +8,7 @@ using ReC.Domain.Entities;
 
 namespace ReC.Application.OutResults.Queries;
 
+[Obsolete("Use the related procedure or view.")]
 public record ReadOutResQuery : IRequest<IEnumerable<OutResDto>>
 {
     public long? ProfileId { get; init; }
@@ -15,6 +16,7 @@ public record ReadOutResQuery : IRequest<IEnumerable<OutResDto>>
     public long? ActionId { get; init; }
 }
 
+[Obsolete("Use the related procedure or view.")]
 public class ReadOutResHandler(IRepository<OutRes> repo, IMapper mapper) : IRequestHandler<ReadOutResQuery, IEnumerable<OutResDto>>
 {
     public async Task<IEnumerable<OutResDto>> Handle(ReadOutResQuery request, CancellationToken cancel)
diff --git a/src/ReC.Application/OutResults/Queries/ReadOutResQueryValidator.cs b/src/ReC.Application/OutResults/Queries/ReadOutResQueryValidator.cs
index 040dfde..688aeb8 100644
--- a/src/ReC.Application/OutResults/Queries/ReadOutResQueryValidator.cs
+++ b/src/ReC.Application/OutResults/Queries/ReadOutResQueryValidator.cs
@@ -2,6 +2,7 @@ using FluentValidation;
 
 namespace ReC.Application.OutResults.Queries;
 
+[Obsolete("Use the related procedure or view.")]
 public class ReadOutResQueryValidator : AbstractValidator<ReadOutResQuery>
 {
     public ReadOutResQueryValidator()