diff --git a/srsgnb/hdr/stack/ric/e2ap.h b/srsgnb/hdr/stack/ric/e2ap.h
index c539de8ba..0ff57e664 100644
--- a/srsgnb/hdr/stack/ric/e2ap.h
+++ b/srsgnb/hdr/stack/ric/e2ap.h
@@ -59,6 +59,11 @@ public:
   e2_ap_pdu_c generate_subscription_failure(ric_subscription_reponse_t ric_subscription_reponse);
   e2_ap_pdu_c generate_subscription_delete_response(ric_subscription_reponse_t ric_subscription_reponse);
   e2_ap_pdu_c generate_subscription_delete_failure(ric_subscription_reponse_t ric_subscription_reponse);
+  e2_ap_pdu_c generate_subscription_delete_required(ric_subscription_reponse_t ric_subscription_reponse);
+  e2_ap_pdu_c generate_subscription_modification_response();
+  e2_ap_pdu_c generate_subscription_modification_failure();
+  e2_ap_pdu_c generate_subscription_modification_required();
+
   e2_ap_pdu_c generate_indication(ric_indication_t& ric_indication);
   e2_ap_pdu_c generate_reset_request();
   e2_ap_pdu_c generate_reset_response();
diff --git a/srsgnb/hdr/stack/ric/ric_subscription.h b/srsgnb/hdr/stack/ric/ric_subscription.h
index b3c0381ad..140c26b43 100644
--- a/srsgnb/hdr/stack/ric/ric_subscription.h
+++ b/srsgnb/hdr/stack/ric/ric_subscription.h
@@ -36,6 +36,10 @@ public:
   void send_subscription_failure();
   void delete_subscription();
 
+  bool handle_subscription_modification_request(uint32_t ric_subscription_modification_request);
+  bool handle_subscription_modification_confirm(uint32_t ric_subscription_modification_confirm);
+  bool handle_subscription_modification_refuse(uint32_t ric_subscription_modification_refuse);
+
 private:
   void send_ric_indication();
   uint32_t _generate_ric_indication_sn();
diff --git a/srsgnb/src/stack/ric/e2ap.cc b/srsgnb/src/stack/ric/e2ap.cc
index a2527d68a..b62b44e16 100644
--- a/srsgnb/src/stack/ric/e2ap.cc
+++ b/srsgnb/src/stack/ric/e2ap.cc
@@ -176,6 +176,34 @@ e2_ap_pdu_c e2ap::generate_subscription_delete_failure(ric_subscription_reponse_
   return pdu;
 }
 
+e2_ap_pdu_c e2ap::generate_subscription_delete_required(ric_subscription_reponse_t ric_subscription_reponse)
+{
+  // TODO: available in e2ap-v3
+  e2_ap_pdu_c pdu;
+  return pdu;
+}
+
+e2_ap_pdu_c e2ap::generate_subscription_modification_response()
+{
+  // TODO: available in e2ap-v3
+  e2_ap_pdu_c pdu;
+  return pdu;
+}
+
+e2_ap_pdu_c e2ap::generate_subscription_modification_failure()
+{
+  // TODO: available in e2ap-v3
+  e2_ap_pdu_c pdu;
+  return pdu;
+}
+
+e2_ap_pdu_c e2ap::generate_subscription_modification_required()
+{
+  // TODO: available in e2ap-v3
+  e2_ap_pdu_c pdu;
+  return pdu;
+}
+
 int e2ap::process_setup_response(e2setup_resp_s setup_response)
 {
   if (setup_procedure_transaction_id == setup_response->transaction_id.value.value) {
diff --git a/srsgnb/src/stack/ric/ric_subscription.cc b/srsgnb/src/stack/ric/ric_subscription.cc
index 22e37149e..1eeb1dd81 100644
--- a/srsgnb/src/stack/ric/ric_subscription.cc
+++ b/srsgnb/src/stack/ric/ric_subscription.cc
@@ -149,6 +149,27 @@ void ric_client::ric_subscription::delete_subscription()
   parent->queue_send_e2ap_pdu(send_pdu);
 }
 
+bool ric_client::ric_subscription::handle_subscription_modification_request(
+    uint32_t ric_subscription_modification_request)
+{
+  // TODO: available in e2ap-v3
+  return false;
+}
+
+bool ric_client::ric_subscription::handle_subscription_modification_confirm(
+    uint32_t ric_subscription_modification_confirm)
+{
+  // TODO: available in e2ap-v3
+  return false;
+}
+
+bool ric_client::ric_subscription::handle_subscription_modification_refuse(
+    uint32_t ric_subscription_modification_refuse)
+{
+  // TODO: available in e2ap-v3
+  return false;
+}
+
 uint32_t ric_client::ric_subscription::_generate_ric_indication_sn()
 {
   uint32_t sn = _ric_indication_sn_gen;