diff --git a/EnvelopeGenerator.Application/Contracts/IEnvelopeReceiverReadOnlyService.cs b/EnvelopeGenerator.Application/Contracts/IEnvelopeReceiverReadOnlyService.cs
new file mode 100644
index 00000000..f657215c
--- /dev/null
+++ b/EnvelopeGenerator.Application/Contracts/IEnvelopeReceiverReadOnlyService.cs
@@ -0,0 +1,10 @@
+using DigitalData.Core.Abstractions.Application;
+using EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly;
+using EnvelopeGenerator.Domain.Entities;
+
+namespace EnvelopeGenerator.Application.Contracts
+{
+    public interface IEnvelopeReceiverReadOnlyService : ICRUDService<EnvelopeReceiverReadOnlyCreateDto, EnvelopeReceiverReadOnlyDto, EnvelopeReceiverReadOnlyUpdateDto, EnvelopeReceiverReadOnly, long>
+    {
+    }
+}
\ No newline at end of file
diff --git a/EnvelopeGenerator.Application/DTOs/EnvelopeReceiverReadOnly/EnvelopeReceiverReadOnlyUpdateDto.cs b/EnvelopeGenerator.Application/DTOs/EnvelopeReceiverReadOnly/EnvelopeReceiverReadOnlyUpdateDto.cs
index 479fd90d..356524a2 100644
--- a/EnvelopeGenerator.Application/DTOs/EnvelopeReceiverReadOnly/EnvelopeReceiverReadOnlyUpdateDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/EnvelopeReceiverReadOnly/EnvelopeReceiverReadOnlyUpdateDto.cs
@@ -1,9 +1,11 @@
-namespace EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly
+using DigitalData.Core.Abstractions;
+
+namespace EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly
 {
     public record EnvelopeReceiverReadOnlyUpdateDto(
         long Id,
         DateTime DateValid,
-        string ChangedWho)
+        string ChangedWho) : IUnique<long>
     {
         public DateTime ChangedWhen { get; } = DateTime.Now;
     };
diff --git a/EnvelopeGenerator.Application/Services/EnvelopeReceiverReadOnlyService.cs b/EnvelopeGenerator.Application/Services/EnvelopeReceiverReadOnlyService.cs
new file mode 100644
index 00000000..3214cfed
--- /dev/null
+++ b/EnvelopeGenerator.Application/Services/EnvelopeReceiverReadOnlyService.cs
@@ -0,0 +1,16 @@
+using AutoMapper;
+using DigitalData.Core.Application;
+using EnvelopeGenerator.Application.Contracts;
+using EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly;
+using EnvelopeGenerator.Domain.Entities;
+using EnvelopeGenerator.Infrastructure.Contracts;
+
+namespace EnvelopeGenerator.Application.Services
+{
+    public class EnvelopeReceiverReadOnlyService : CRUDService<IEnvelopeReceiverReadOnlyRepository, EnvelopeReceiverReadOnlyCreateDto, EnvelopeReceiverReadOnlyDto, EnvelopeReceiverReadOnlyUpdateDto, EnvelopeReceiverReadOnly, long>, IEnvelopeReceiverReadOnlyService
+    {
+        public EnvelopeReceiverReadOnlyService(IEnvelopeReceiverReadOnlyRepository repository, IMapper mapper) : base(repository, mapper)
+        {
+        }
+    }
+}
\ No newline at end of file