diff --git a/CHANGELOG.md b/CHANGELOG.md
index 55498e86..f9c651a0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 - Add kind: `ServiceIntegrationEndpoint`
 - Change `Kafka` field `userConfig.kafka_version`: enum ~~`[3.4, 3.5, 3.6]`~~ → `[3.4, 3.5, 3.6, 3.7]`
+- Add `ServiceIntegration` `flink_external_postgresql` type
 
 ## v0.19.0 - 2024-04-18
 
diff --git a/api/v1alpha1/serviceintegration_types.go b/api/v1alpha1/serviceintegration_types.go
index 9a26dd5d..44a49f96 100644
--- a/api/v1alpha1/serviceintegration_types.go
+++ b/api/v1alpha1/serviceintegration_types.go
@@ -24,7 +24,7 @@ type ServiceIntegrationSpec struct {
 	ProjectDependant `json:",inline"`
 
 	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Value is immutable"
-	// +kubebuilder:validation:Enum=alertmanager;autoscaler;caching;cassandra_cross_service_cluster;clickhouse_kafka;clickhouse_postgresql;dashboard;datadog;datasource;external_aws_cloudwatch_logs;external_aws_cloudwatch_metrics;external_elasticsearch_logs;external_google_cloud_logging;external_opensearch_logs;flink;flink_external_kafka;internal_connectivity;jolokia;kafka_connect;kafka_logs;kafka_mirrormaker;logs;m3aggregator;m3coordinator;metrics;opensearch_cross_cluster_replication;opensearch_cross_cluster_search;prometheus;read_replica;rsyslog;schema_registry_proxy;stresstester;thanosquery;thanosstore;vmalert
+	// +kubebuilder:validation:Enum=alertmanager;autoscaler;caching;cassandra_cross_service_cluster;clickhouse_kafka;clickhouse_postgresql;dashboard;datadog;datasource;external_aws_cloudwatch_logs;external_aws_cloudwatch_metrics;external_elasticsearch_logs;external_google_cloud_logging;external_opensearch_logs;flink;flink_external_kafka;flink_external_postgresql;internal_connectivity;jolokia;kafka_connect;kafka_logs;kafka_mirrormaker;logs;m3aggregator;m3coordinator;metrics;opensearch_cross_cluster_replication;opensearch_cross_cluster_search;prometheus;read_replica;rsyslog;schema_registry_proxy;stresstester;thanosquery;thanosstore;vmalert
 	// Type of the service integration accepted by Aiven API. Some values may not be supported by the operator
 	IntegrationType string `json:"integrationType"`
 
diff --git a/api/v1alpha1/serviceintegrationendpoint_types.go b/api/v1alpha1/serviceintegrationendpoint_types.go
index 531e662b..c24e3627 100644
--- a/api/v1alpha1/serviceintegrationendpoint_types.go
+++ b/api/v1alpha1/serviceintegrationendpoint_types.go
@@ -28,7 +28,7 @@ type ServiceIntegrationEndpointSpec struct {
 	ProjectDependant `json:",inline"`
 
 	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Value is immutable"
-	// +kubebuilder:validation:Enum=autoscaler;datadog;external_aws_cloudwatch_logs;external_aws_cloudwatch_metrics;external_aws_s3;external_clickhouse;external_elasticsearch_logs;external_google_cloud_bigquery;external_google_cloud_logging;external_kafka;external_mysql;external_opensearch_logs;external_postgresql;external_redis;external_schema_registry;jolokia;prometheus;rsyslog
+	// +kubebuilder:validation:Enum=autoscaler;datadog;external_aws_cloudwatch_logs;external_aws_cloudwatch_metrics;external_aws_s3;external_clickhouse;external_elasticsearch_logs;external_google_cloud_bigquery;external_google_cloud_logging;external_kafka;external_mysql;external_opensearch_logs;external_postgresql;external_redis;external_schema_registry;external_sumologic_logs;jolokia;prometheus;rsyslog
 	// Type of the service integration endpoint
 	EndpointType string `json:"endpointType"`
 
diff --git a/charts/aiven-operator-crds/templates/aiven.io_serviceintegrationendpoints.yaml b/charts/aiven-operator-crds/templates/aiven.io_serviceintegrationendpoints.yaml
index 9e33b7e9..85e874ee 100644
--- a/charts/aiven-operator-crds/templates/aiven.io_serviceintegrationendpoints.yaml
+++ b/charts/aiven-operator-crds/templates/aiven.io_serviceintegrationendpoints.yaml
@@ -156,6 +156,7 @@ spec:
                     - external_postgresql
                     - external_redis
                     - external_schema_registry
+                    - external_sumologic_logs
                     - jolokia
                     - prometheus
                     - rsyslog
diff --git a/charts/aiven-operator-crds/templates/aiven.io_serviceintegrations.yaml b/charts/aiven-operator-crds/templates/aiven.io_serviceintegrations.yaml
index 9cfd5373..1053fb3f 100644
--- a/charts/aiven-operator-crds/templates/aiven.io_serviceintegrations.yaml
+++ b/charts/aiven-operator-crds/templates/aiven.io_serviceintegrations.yaml
@@ -408,6 +408,7 @@ spec:
                     - external_opensearch_logs
                     - flink
                     - flink_external_kafka
+                    - flink_external_postgresql
                     - internal_connectivity
                     - jolokia
                     - kafka_connect
diff --git a/config/crd/bases/aiven.io_serviceintegrationendpoints.yaml b/config/crd/bases/aiven.io_serviceintegrationendpoints.yaml
index 9e33b7e9..85e874ee 100644
--- a/config/crd/bases/aiven.io_serviceintegrationendpoints.yaml
+++ b/config/crd/bases/aiven.io_serviceintegrationendpoints.yaml
@@ -156,6 +156,7 @@ spec:
                     - external_postgresql
                     - external_redis
                     - external_schema_registry
+                    - external_sumologic_logs
                     - jolokia
                     - prometheus
                     - rsyslog
diff --git a/config/crd/bases/aiven.io_serviceintegrations.yaml b/config/crd/bases/aiven.io_serviceintegrations.yaml
index 9cfd5373..1053fb3f 100644
--- a/config/crd/bases/aiven.io_serviceintegrations.yaml
+++ b/config/crd/bases/aiven.io_serviceintegrations.yaml
@@ -408,6 +408,7 @@ spec:
                     - external_opensearch_logs
                     - flink
                     - flink_external_kafka
+                    - flink_external_postgresql
                     - internal_connectivity
                     - jolokia
                     - kafka_connect
diff --git a/docs/docs/api-reference/serviceintegration.md b/docs/docs/api-reference/serviceintegration.md
index de3cfda5..14091544 100644
--- a/docs/docs/api-reference/serviceintegration.md
+++ b/docs/docs/api-reference/serviceintegration.md
@@ -43,7 +43,7 @@ ServiceIntegrationSpec defines the desired state of ServiceIntegration.
 
 **Required**
 
-- [`integrationType`](#spec.integrationType-property){: name='spec.integrationType-property'} (string, Enum: `alertmanager`, `autoscaler`, `caching`, `cassandra_cross_service_cluster`, `clickhouse_kafka`, `clickhouse_postgresql`, `dashboard`, `datadog`, `datasource`, `external_aws_cloudwatch_logs`, `external_aws_cloudwatch_metrics`, `external_elasticsearch_logs`, `external_google_cloud_logging`, `external_opensearch_logs`, `flink`, `flink_external_kafka`, `internal_connectivity`, `jolokia`, `kafka_connect`, `kafka_logs`, `kafka_mirrormaker`, `logs`, `m3aggregator`, `m3coordinator`, `metrics`, `opensearch_cross_cluster_replication`, `opensearch_cross_cluster_search`, `prometheus`, `read_replica`, `rsyslog`, `schema_registry_proxy`, `stresstester`, `thanosquery`, `thanosstore`, `vmalert`, Immutable). Type of the service integration accepted by Aiven API. Some values may not be supported by the operator.
+- [`integrationType`](#spec.integrationType-property){: name='spec.integrationType-property'} (string, Enum: `alertmanager`, `autoscaler`, `caching`, `cassandra_cross_service_cluster`, `clickhouse_kafka`, `clickhouse_postgresql`, `dashboard`, `datadog`, `datasource`, `external_aws_cloudwatch_logs`, `external_aws_cloudwatch_metrics`, `external_elasticsearch_logs`, `external_google_cloud_logging`, `external_opensearch_logs`, `flink`, `flink_external_kafka`, `flink_external_postgresql`, `internal_connectivity`, `jolokia`, `kafka_connect`, `kafka_logs`, `kafka_mirrormaker`, `logs`, `m3aggregator`, `m3coordinator`, `metrics`, `opensearch_cross_cluster_replication`, `opensearch_cross_cluster_search`, `prometheus`, `read_replica`, `rsyslog`, `schema_registry_proxy`, `stresstester`, `thanosquery`, `thanosstore`, `vmalert`, Immutable). Type of the service integration accepted by Aiven API. Some values may not be supported by the operator.
 - [`project`](#spec.project-property){: name='spec.project-property'} (string, Immutable, MaxLength: 63, Format: `^[a-zA-Z0-9_-]+$`). Identifies the project this resource belongs to.
 
 **Optional**
diff --git a/docs/docs/api-reference/serviceintegrationendpoint.md b/docs/docs/api-reference/serviceintegrationendpoint.md
index a4c9a8c2..ac679e32 100644
--- a/docs/docs/api-reference/serviceintegrationendpoint.md
+++ b/docs/docs/api-reference/serviceintegrationendpoint.md
@@ -45,7 +45,7 @@ ServiceIntegrationEndpointSpec defines the desired state of ServiceIntegrationEn
 
 **Required**
 
-- [`endpointType`](#spec.endpointType-property){: name='spec.endpointType-property'} (string, Enum: `autoscaler`, `datadog`, `external_aws_cloudwatch_logs`, `external_aws_cloudwatch_metrics`, `external_aws_s3`, `external_clickhouse`, `external_elasticsearch_logs`, `external_google_cloud_bigquery`, `external_google_cloud_logging`, `external_kafka`, `external_mysql`, `external_opensearch_logs`, `external_postgresql`, `external_redis`, `external_schema_registry`, `jolokia`, `prometheus`, `rsyslog`, Immutable). Type of the service integration endpoint.
+- [`endpointType`](#spec.endpointType-property){: name='spec.endpointType-property'} (string, Enum: `autoscaler`, `datadog`, `external_aws_cloudwatch_logs`, `external_aws_cloudwatch_metrics`, `external_aws_s3`, `external_clickhouse`, `external_elasticsearch_logs`, `external_google_cloud_bigquery`, `external_google_cloud_logging`, `external_kafka`, `external_mysql`, `external_opensearch_logs`, `external_postgresql`, `external_redis`, `external_schema_registry`, `external_sumologic_logs`, `jolokia`, `prometheus`, `rsyslog`, Immutable). Type of the service integration endpoint.
 - [`project`](#spec.project-property){: name='spec.project-property'} (string, Immutable, MaxLength: 63, Format: `^[a-zA-Z0-9_-]+$`). Identifies the project this resource belongs to.
 
 **Optional**