diff --git a/src/main/java/de/caritas/cob/userservice/api/facade/CreateSessionFacade.java b/src/main/java/de/caritas/cob/userservice/api/facade/CreateSessionFacade.java
index f4fae5ed9..000df97ec 100644
--- a/src/main/java/de/caritas/cob/userservice/api/facade/CreateSessionFacade.java
+++ b/src/main/java/de/caritas/cob/userservice/api/facade/CreateSessionFacade.java
@@ -2,6 +2,7 @@
 
 import static de.caritas.cob.userservice.api.helper.SessionDataProvider.fromUserDTO;
 import static java.util.Objects.isNull;
+import static java.util.Objects.nonNull;
 import static java.util.Objects.requireNonNull;
 import static org.apache.commons.lang3.BooleanUtils.isTrue;
 
@@ -130,11 +131,14 @@ private void initializeMonitoring(
   }
 
   private Session initializeSession(UserDTO userDTO, User user, AgencyDTO agencyDTO) {
+    var sessionData = fromUserDTO(userDTO);
+    var isTeaming = isTrue(agencyDTO.getTeamAgency());
+    boolean initialized = false;
 
     try {
-      var session =
-          sessionService.initializeSession(user, userDTO, isTrue(agencyDTO.getTeamAgency()));
-      sessionDataService.saveSessionData(session, fromUserDTO(userDTO));
+      var session = sessionService.initializeSession(user, userDTO, isTeaming);
+      initialized = nonNull(session) && nonNull(session.getId());
+      sessionDataService.saveSessionData(session, sessionData);
 
       return session;
     } catch (Exception ex) {
@@ -145,9 +149,9 @@ private Session initializeSession(UserDTO userDTO, User user, AgencyDTO agencyDT
               .rollBackUserAccount(Boolean.parseBoolean(userDTO.getTermsAccepted()))
               .build());
 
-      throw new InternalServerErrorException(
-          String.format(
-              "Could not create session for user %s. %s", user.getUsername(), ex.getMessage()));
+      var stepWord = initialized ? "save session data" : "initialize session";
+      var message = String.format("Could not %s for user %s.", stepWord, user.getUsername());
+      throw new InternalServerErrorException(message, ex);
     }
   }
 
diff --git a/src/main/java/de/caritas/cob/userservice/api/tenant/MultitenancyWithSingleDomainTenantResolver.java b/src/main/java/de/caritas/cob/userservice/api/tenant/MultitenancyWithSingleDomainTenantResolver.java
index e69cd6441..007b410c5 100644
--- a/src/main/java/de/caritas/cob/userservice/api/tenant/MultitenancyWithSingleDomainTenantResolver.java
+++ b/src/main/java/de/caritas/cob/userservice/api/tenant/MultitenancyWithSingleDomainTenantResolver.java
@@ -49,7 +49,10 @@ public Optional<Long> resolve(HttpServletRequest request) {
   }
 
   private Optional<Long> resolveTenantFromConsultantRequestParameter() {
+    // temporarily set technical tenant to be able to run query during tenant determination
+    TenantContext.setCurrentTenant(0L);
     Optional<Consultant> consultant = consultantService.getConsultant(getConsultantId());
+    TenantContext.clear();
     if (consultant.isPresent()) {
       return Optional.of(consultant.get().getTenantId());
     }
diff --git a/src/test/java/de/caritas/cob/userservice/api/tenant/MultitenancyWithSingleDomainTenantResolverTest.java b/src/test/java/de/caritas/cob/userservice/api/tenant/MultitenancyWithSingleDomainTenantResolverTest.java
index 7a55efeda..19aad5716 100644
--- a/src/test/java/de/caritas/cob/userservice/api/tenant/MultitenancyWithSingleDomainTenantResolverTest.java
+++ b/src/test/java/de/caritas/cob/userservice/api/tenant/MultitenancyWithSingleDomainTenantResolverTest.java
@@ -14,6 +14,7 @@
 import javax.servlet.http.HttpServletRequest;
 import org.jeasy.random.EasyRandom;
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.InjectMocks;
@@ -42,6 +43,11 @@ class MultitenancyWithSingleDomainTenantResolverTest {
 
   @Mock private ServletRequestAttributes requestAttributes;
 
+  @BeforeEach
+  public void initialize() {
+    TenantContext.clear();
+  }
+
   @AfterEach
   public void tearDown() {
     resetRequestAttributes();
@@ -87,6 +93,7 @@ void resolve_Should_ResolveToEmpty_When_FeatureMultitenancyWithSingleDomainIsDis
     assertThat(multitenancyWithSingleDomainTenantResolver.canResolve(request)).isTrue();
     assertThat(multitenancyWithSingleDomainTenantResolver.resolve(request))
         .isEqualTo(Optional.of(ANOTHER_TENANT));
+    assertThat(TenantContext.getCurrentTenant()).isNull();
   }
 
   @Test
@@ -106,6 +113,7 @@ void resolve_Should_ResolveToEmpty_When_FeatureMultitenancyWithSingleDomainIsDis
     // when
     assertThat(multitenancyWithSingleDomainTenantResolver.canResolve(request)).isFalse();
     assertThat(multitenancyWithSingleDomainTenantResolver.resolve(request)).isEmpty();
+    assertThat(TenantContext.getCurrentTenant()).isNull();
   }
 
   @Test