diff --git a/src/Digdir.Domain.Dialogporten.Infrastructure/Altinn/Authorization/AltinnAuthorizationClient.cs b/src/Digdir.Domain.Dialogporten.Infrastructure/Altinn/Authorization/AltinnAuthorizationClient.cs
index 96adb19e9..0a5253b5b 100644
--- a/src/Digdir.Domain.Dialogporten.Infrastructure/Altinn/Authorization/AltinnAuthorizationClient.cs
+++ b/src/Digdir.Domain.Dialogporten.Infrastructure/Altinn/Authorization/AltinnAuthorizationClient.cs
@@ -81,9 +81,8 @@ public async Task<AuthorizedPartiesResult> GetAuthorizedParties(IPartyIdentifier
         CancellationToken cancellationToken = default)
     {
         var authorizedPartiesRequest = new AuthorizedPartiesRequest(authenticatedParty);
-        // var authorizedParties = await _partiesCache.GetOrSetAsync(authorizedPartiesRequest.GenerateCacheKey(), async token
-        //     => await PerformAuthorizedPartiesRequest(authorizedPartiesRequest, token), token: cancellationToken);
-        var authorizedParties = await PerformAuthorizedPartiesRequest(authorizedPartiesRequest, cancellationToken);
+        var authorizedParties = await _partiesCache.GetOrSetAsync(authorizedPartiesRequest.GenerateCacheKey(), async token
+             => await PerformAuthorizedPartiesRequest(authorizedPartiesRequest, token), token: cancellationToken);
         return flatten ? GetFlattenedAuthorizedParties(authorizedParties) : authorizedParties;
     }
 
diff --git a/src/Digdir.Domain.Dialogporten.Infrastructure/Altinn/NameRegistry/PartyNameRegistryClient.cs b/src/Digdir.Domain.Dialogporten.Infrastructure/Altinn/NameRegistry/PartyNameRegistryClient.cs
index 7646f30f8..0f4f70454 100644
--- a/src/Digdir.Domain.Dialogporten.Infrastructure/Altinn/NameRegistry/PartyNameRegistryClient.cs
+++ b/src/Digdir.Domain.Dialogporten.Infrastructure/Altinn/NameRegistry/PartyNameRegistryClient.cs
@@ -4,6 +4,7 @@
 using Digdir.Domain.Dialogporten.Application.Externals;
 using Digdir.Domain.Dialogporten.Domain.Parties;
 using Digdir.Domain.Dialogporten.Domain.Parties.Abstractions;
+using Microsoft.Extensions.Logging;
 using ZiggyCreatures.Caching.Fusion;
 
 namespace Digdir.Domain.Dialogporten.Infrastructure.Altinn.NameRegistry;
@@ -12,6 +13,7 @@ internal sealed class PartyNameRegistryClient : IPartyNameRegistry
 {
     private readonly IFusionCache _cache;
     private readonly HttpClient _client;
+    private readonly ILogger<PartyNameRegistryClient> _logger;
 
     private static readonly JsonSerializerOptions SerializerOptions = new()
     {
@@ -19,17 +21,28 @@ internal sealed class PartyNameRegistryClient : IPartyNameRegistry
         DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingDefault
     };
 
-    public PartyNameRegistryClient(HttpClient client, IFusionCacheProvider cacheProvider)
+    public PartyNameRegistryClient(HttpClient client, IFusionCacheProvider cacheProvider, ILogger<PartyNameRegistryClient> logger)
     {
         _client = client ?? throw new ArgumentNullException(nameof(client));
+        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
         _cache = cacheProvider.GetCache(nameof(NameRegistry)) ?? throw new ArgumentNullException(nameof(cacheProvider));
     }
 
     public async Task<string?> GetName(string externalIdWithPrefix, CancellationToken cancellationToken)
     {
-        return await _cache.GetOrSetAsync(
+        return await _cache.GetOrSetAsync<string?>(
             $"Name_{externalIdWithPrefix}",
-            ct => GetNameFromRegister(externalIdWithPrefix, ct),
+            async (ctx, ct) =>
+            {
+                var name = await GetNameFromRegister(externalIdWithPrefix, ct);
+                if (name is null)
+                {
+                    // Short negative cache
+                    ctx.Options.Duration = TimeSpan.FromSeconds(10);
+                }
+
+                return name;
+            },
             token: cancellationToken);
     }
 
@@ -48,7 +61,14 @@ public PartyNameRegistryClient(HttpClient client, IFusionCacheProvider cacheProv
             serializerOptions: SerializerOptions,
             cancellationToken: cancellationToken);
 
-        return nameLookupResult.PartyNames.FirstOrDefault()?.Name;
+        var name = nameLookupResult.PartyNames.FirstOrDefault()?.Name;
+        if (name is null)
+        {
+            // This is PII, but this is an error condition (probably due to missing Altinn profile)
+            _logger.LogError("Failed to get name from party name registry for external id {ExternalId}", externalIdWithPrefix);
+        }
+
+        return name;
     }
 
     private static bool TryParse(string externalIdWithPrefix, [NotNullWhen(true)] out NameLookup? nameLookup)