diff --git a/C4/SIP/Sip/Configuration.pm b/C4/SIP/Sip/Configuration.pm
index 41b4288577..4a492f5d0d 100644
--- a/C4/SIP/Sip/Configuration.pm
+++ b/C4/SIP/Sip/Configuration.pm
@@ -56,6 +56,7 @@ sub get_configuration {
     } else {
         $cfg = $current_config;
     }
+    die unless $cfg;
     my %listeners;
 
     # The key to the listeners hash is the 'port' component of the
diff --git a/Koha/SIP2/Object.pm b/Koha/SIP2/Object.pm
index 2a55d217f4..6555785d72 100644
--- a/Koha/SIP2/Object.pm
+++ b/Koha/SIP2/Object.pm
@@ -39,7 +39,7 @@ This is the base class for SIP2 objects in the Koha library system.
 
 =head3 store
 
-store
+    store wrapper
 
 =cut
 
@@ -50,6 +50,12 @@ sub store {
     return $self->SUPER::store;
 }
 
+=head3 delete
+
+    delete wrapper
+
+=cut
+
 sub delete {
     my ($self) = @_;
 
@@ -57,6 +63,12 @@ sub delete {
     return $self->SUPER::delete;
 }
 
+=head3 _update_config_timestamp
+
+    Updates the sip2_resource_last_modified timestamp in cache
+
+=cut
+
 sub _update_config_timestamp {
     my $cache = Koha::Caches->get_instance();
     $cache->set_in_cache( 'sip2_resource_last_modified', dt_from_string()->epoch );
diff --git a/Koha/Schema/Result/SipAccount.pm b/Koha/Schema/Result/SipAccount.pm
index 63c75b748c..8dac7953ea 100644
--- a/Koha/Schema/Result/SipAccount.pm
+++ b/Koha/Schema/Result/SipAccount.pm
@@ -581,9 +581,22 @@ __PACKAGE__->add_columns(
     "+show_outstanding_amount" => { is_boolean => 1 }
 );
 
+=head2 koha_objects_class
+
+  Koha Objects class
+
+=cut
+
 sub koha_objects_class {
     'Koha::SIP2::Accounts';
 }
+
+=head2 koha_object_class
+
+  Koha Object class
+
+=cut
+
 sub koha_object_class {
     'Koha::SIP2::Account';
 }
diff --git a/Koha/Schema/Result/SipAccountSystemPreferenceOverride.pm b/Koha/Schema/Result/SipAccountSystemPreferenceOverride.pm
index 8ea7cf890b..b618b0ad60 100644
--- a/Koha/Schema/Result/SipAccountSystemPreferenceOverride.pm
+++ b/Koha/Schema/Result/SipAccountSystemPreferenceOverride.pm
@@ -121,10 +121,22 @@ __PACKAGE__->belongs_to(
 
 # You can replace this text with custom code or comments, and it will be preserved on regeneration
 
+=head2 koha_objects_class
+
+  Koha Objects class
+
+=cut
+
 sub koha_objects_class {
     'Koha::SIP2::Accounts::SystemPreferenceOverrides';
 }
 
+=head2 koha_object_class
+
+  Koha Object class
+
+=cut
+
 sub koha_object_class {
     'Koha::SIP2::Account::SystemPreferenceOverride';
 }
diff --git a/Koha/Schema/Result/SipInstitution.pm b/Koha/Schema/Result/SipInstitution.pm
index 330789350d..aac923dff2 100644
--- a/Koha/Schema/Result/SipInstitution.pm
+++ b/Koha/Schema/Result/SipInstitution.pm
@@ -195,9 +195,22 @@ __PACKAGE__->add_columns(
     "+status_update" => { is_boolean => 1 }
 );
 
+=head2 koha_objects_class
+
+  Koha Objects class
+
+=cut
+
 sub koha_objects_class {
     'Koha::SIP2::Institutions';
 }
+
+=head2 koha_object_class
+
+  Koha Object class
+
+=cut
+
 sub koha_object_class {
     'Koha::SIP2::Institution';
 }
diff --git a/Koha/Schema/Result/SipSystemPreferenceOverride.pm b/Koha/Schema/Result/SipSystemPreferenceOverride.pm
index 81581b42fc..a01729fe93 100644
--- a/Koha/Schema/Result/SipSystemPreferenceOverride.pm
+++ b/Koha/Schema/Result/SipSystemPreferenceOverride.pm
@@ -72,11 +72,22 @@ __PACKAGE__->set_primary_key("sip_system_preference_override_id");
 # Created by DBIx::Class::Schema::Loader v0.07051 @ 2025-02-10 10:27:51
 # DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:szyNGurH+wJBItdnYfAoRA
 
+=head2 koha_objects_class
+
+  Koha Objects class
+
+=cut
 
 sub koha_objects_class {
     'Koha::SIP2::SystemPreferenceOverrides';
 }
 
+=head2 koha_object_class
+
+  Koha Object class
+
+=cut
+
 sub koha_object_class {
     'Koha::SIP2::SystemPreferenceOverride';
 }