diff --git a/src/Api/AdminConsole/Controllers/OrganizationUsersController.cs b/src/Api/AdminConsole/Controllers/OrganizationUsersController.cs
index d3fdf47c2a..f19fdc031c 100644
--- a/src/Api/AdminConsole/Controllers/OrganizationUsersController.cs
+++ b/src/Api/AdminConsole/Controllers/OrganizationUsersController.cs
@@ -226,7 +226,7 @@ public class OrganizationUsersController : Controller
             throw new UnauthorizedAccessException();
         }
 
-        await _organizationService.InitPendingOrganization(user.Id, orgId, model.Keys.PublicKey, model.Keys.EncryptedPrivateKey, model.CollectionName);
+        await _organizationService.InitPendingOrganization(user.Id, orgId, organizationUserId, model.Keys.PublicKey, model.Keys.EncryptedPrivateKey, model.CollectionName);
         await _acceptOrgUserCommand.AcceptOrgUserByEmailTokenAsync(organizationUserId, user, model.Token, _userService);
         await _organizationService.ConfirmUserAsync(orgId, organizationUserId, model.Key, user.Id, _userService);
     }
diff --git a/src/Core/AdminConsole/Services/IOrganizationService.cs b/src/Core/AdminConsole/Services/IOrganizationService.cs
index 77c92ec4df..a9d3ee1cc7 100644
--- a/src/Core/AdminConsole/Services/IOrganizationService.cs
+++ b/src/Core/AdminConsole/Services/IOrganizationService.cs
@@ -84,7 +84,7 @@ public interface IOrganizationService
     /// <remarks>
     /// This method must target a disabled Organization that has null keys and status as 'Pending'.
     /// </remarks>
-    Task InitPendingOrganization(Guid userId, Guid organizationId, string publicKey, string privateKey, string collectionName);
+    Task InitPendingOrganization(Guid userId, Guid organizationId, Guid organizationUserId, string publicKey, string privateKey, string collectionName);
     Task ReplaceAndUpdateCacheAsync(Organization org, EventType? orgEvent = null);
 
     void ValidatePasswordManagerPlan(Models.StaticStore.Plan plan, OrganizationUpgrade upgrade);
diff --git a/src/Core/AdminConsole/Services/Implementations/OrganizationService.cs b/src/Core/AdminConsole/Services/Implementations/OrganizationService.cs
index 6d547badc6..264962dca7 100644
--- a/src/Core/AdminConsole/Services/Implementations/OrganizationService.cs
+++ b/src/Core/AdminConsole/Services/Implementations/OrganizationService.cs
@@ -2526,7 +2526,7 @@ public class OrganizationService : IOrganizationService
         });
     }
 
-    public async Task InitPendingOrganization(Guid userId, Guid organizationId, string publicKey, string privateKey, string collectionName)
+    public async Task InitPendingOrganization(Guid userId, Guid organizationId, Guid organizationUserId, string publicKey, string privateKey, string collectionName)
     {
         await ValidateSignUpPoliciesAsync(userId);
 
@@ -2565,9 +2565,8 @@ public class OrganizationService : IOrganizationService
             List<CollectionAccessSelection> defaultOwnerAccess = null;
             if (org.FlexibleCollections)
             {
-                var orgUser = await _organizationUserRepository.GetByOrganizationAsync(org.Id, userId);
                 defaultOwnerAccess =
-                    [new CollectionAccessSelection { Id = orgUser.Id, HidePasswords = false, ReadOnly = false, Manage = true }];
+                    [new CollectionAccessSelection { Id = organizationUserId, HidePasswords = false, ReadOnly = false, Manage = true }];
             }
 
             var defaultCollection = new Collection