diff --git a/api/config_sample.php b/api/config_sample.php
index 9be9cf64f..4fb94bc03 100644
--- a/api/config_sample.php
+++ b/api/config_sample.php
@@ -264,7 +264,6 @@
     $use_shipping_service_incoming_shipments = null;
     $use_shipping_service_redirect = null;
     $use_shipping_service_redirect_incoming_shipments = null;
-    $shipping_service_api_url = null;
     $shipping_service_api_user = null;
     $shipping_service_api_password = null;
     $shipping_service_app_url = null;
diff --git a/api/src/Page/Shipment.php b/api/src/Page/Shipment.php
index 9ae571535..cd62cfe95 100644
--- a/api/src/Page/Shipment.php
+++ b/api/src/Page/Shipment.php
@@ -1016,6 +1016,7 @@ function _transfer_dewar()
     function _create_dewars_shipment_request(
         array $dewars,
         string $proposal,
+        int $session_number,
         int $external_id,
         int $shipping_id,
         string $callback_url=""
@@ -1025,6 +1026,8 @@ function _create_dewars_shipment_request(
         foreach (array_values($dewars) as $dew) {
             $package = [
                 "external_id" => (int) $dew['DEWARID'],
+                "container_name" => $dew['NAME'],
+                "serial_number" => $dew['MANUFACTURERSERIALNUMBER'],
                 "shippable_item_type" => "CRYOGENIC_DRY_SHIPPER_CASE",
                 "line_items" => [
                     [
@@ -1063,6 +1066,7 @@ function _create_dewars_shipment_request(
         $protocol = isset($_SERVER["HTTPS"]) ? 'https' : 'http';
         $shipment_request_info = array(
             "proposal" => $proposal,
+            "session_number" => $session_number,
             "external_id" => $external_id,
             "origin_url" => "{$protocol}://{$_SERVER['SERVER_NAME']}{$server_port}/shipments/sid/{$shipping_id}",
             "packages" => $packages
@@ -1083,6 +1087,7 @@ function _dispatch_dewar_shipment_request($dewar)
 
         $dewars = [$dewar];
         $proposal = $dewar['PROPOSAL'];
+        $session_number = $dewar['VIS'];
         $external_id = (int) $dewar['DEWARID'];
         $shipping_id = (int) $dewar['SHIPPINGID'];
         $token = Utils::generateRandomMd5();
@@ -1092,7 +1097,7 @@ function _dispatch_dewar_shipment_request($dewar)
         );
 
         $callback_url = "/api/shipment/dewars/confirmdispatch/did/{$external_id}/token/{$token}";
-        $external_shipping_id = $this->_create_dewars_shipment_request($dewars, $proposal, $external_id, $shipping_id, $callback_url);
+        $external_shipping_id = $this->_create_dewars_shipment_request($dewars, $proposal, $session_number, $external_id, $shipping_id, $callback_url);
 
         $this->db->pq(
             "UPDATE dewar SET externalShippingIdFromSynchrotron=:1 WHERE dewarid=:2",
@@ -1110,11 +1115,7 @@ function _dispatch_dewar_in_shipping_service($dispatch_info, $dewar)
         global $facility_country;
         global $facility_phone;
         global $facility_contact;
-        global $shipping_service_api_url;
         global $facility_email;
-        if (!isset($shipping_service_api_url)) {
-            throw new Exception("Could not send request to shipping service: shipping_service_api_url not set");
-        }
 
         # Create shipment
         $shipment_data = array(
@@ -1137,7 +1138,12 @@ function _dispatch_dewar_in_shipping_service($dispatch_info, $dewar)
             "shipment_reference" =>  $dispatch_info['VISIT'],
             "external_id" => (int) $dispatch_info['DEWARID'],
             "journey_type" => ShippingService::JOURNEY_FROM_FACILITY,
-            "packages" => array(array("external_id" => (int) $dispatch_info['DEWARID']))
+            "packages" => array(
+                array(
+                    "external_id" => (int) $dispatch_info['DEWARID'],
+                    "container_name" => $dewar['NAME'],
+                )
+            )
         );
 
         # Split up address. Necessary as address is a single field in ispyb
@@ -1194,12 +1200,18 @@ function _dispatch_dewar()
         }
 
         $dew = $this->db->pq(
-            "SELECT d.dewarid, d.barcode, d.storagelocation, d.dewarstatus, d.externalShippingIdFromSynchrotron, s.shippingid, p.proposalcode, CONCAT(p.proposalcode, p.proposalnumber) as proposal, count(distinct c.containerId) as num_pucks, count(b.blsampleId) as num_samples
+            "SELECT d.dewarid, d.barcode, d.storagelocation, d.dewarstatus, d.externalShippingIdFromSynchrotron,
+            s.shippingid, p.proposalcode, CONCAT(p.proposalcode, p.proposalnumber) as proposal,
+            count(distinct c.containerId) as num_pucks, count(b.blsampleId) as num_samples,
+            ifnull(bls.visit_number, 0) as vis, IF(d.facilitycode, d.facilitycode, d.code) as name,
+            dr.manufacturerserialnumber
                 FROM dewar d 
                 INNER JOIN shipping s ON s.shippingid = d.shippingid 
                 INNER JOIN proposal p ON p.proposalid = s.proposalid
                 LEFT JOIN container c on c.dewarid = d.dewarid
                 LEFT JOIN BLSample b on b.containerId = c.containerId
+                LEFT JOIN blsession bls ON bls.sessionid = d.firstexperimentid
+                LEFT JOIN dewarregistry dr ON dr.dewarregistryid = d.dewarregistryid
                 WHERE d.dewarid=:1 and p.proposalid=:2",
             array($this->arg('DEWARID'), $this->proposalid)
         );
@@ -3299,10 +3311,15 @@ function _book_shipment_in_shipping_service($user, $shipment, $dewars, $journey_
             "contact_email" => trim($user["email"])
         );
         $shipment_data = array(
-            "shipment_reference" => $shipment["PROP"],
+            "shipment_reference" => $shipment["PROP"] . '-' . ($shipment["session_number"] ?? 0),
             "external_id" => $shipment['SHIPPINGID'],
             "packages" => array_map(
-                function($dewar) {return array("external_id" => $dewar["DEWARID"]);},
+                function($dewar) {
+                    return array(
+                        "external_id" => $dewar["DEWARID"],
+                        "container_name" => $dewar["NAME"],
+                    );
+                },
                 $dewars
             )
         );
@@ -3356,6 +3373,7 @@ function _create_shipment_shipment_request($shipment, array $dewars): int
         $external_shipping_id = $this->_create_dewars_shipment_request(
             $dewars,
             $shipment['PROP'],
+            isset($shipment['session_number']) ? $shipment['session_number'] : 0,
             $shipping_id,
             $shipping_id,
             $callback_url
@@ -3400,15 +3418,25 @@ function _create_awb()
         $args = array_merge(array($ship['SHIPPINGID']), $this->arg('DEWARS'));
 
         $dewars = $this->db->pq(
-            "SELECT d.dewarid, d.weight, IF(d.facilitycode, d.facilitycode, d.code) as name, count(distinct c.containerId) as num_pucks, count(b.blsampleId) as num_samples
+            "SELECT d.dewarid, d.weight, IF(d.facilitycode, d.facilitycode, d.code) as name,
+            count(distinct c.containerId) as num_pucks, count(b.blsampleId) as num_samples,
+            bls.visit_number, dr.manufacturerserialnumber
             FROM dewar d
             LEFT JOIN container c on c.dewarid = d.dewarid
             LEFT JOIN BLSample b on b.containerId = c.containerId
+            LEFT JOIN blsession bls on bls.sessionid = d.firstexperimentid
+            LEFT JOIN dewarregistry dr on dr.dewarregistryid = d.dewarregistryid
             WHERE d.shippingid=:1 AND d.dewarid IN (:" . implode(',:', $ids) . ")
             GROUP BY d.dewarid",
             $args
         );
 
+        foreach ($dewars as $d) {
+            if ($d['VISIT_NUMBER']) {
+                $ship['session_number'] = $d['VISIT_NUMBER'];
+            }
+        }
+
         if (
             Utils::getValueOrDefault($use_shipping_service_incoming_shipments)
             && in_array($this->arg('COUNTRY'), $facility_courier_countries)
diff --git a/api/src/Shipment/ShippingService.php b/api/src/Shipment/ShippingService.php
index ade0a35ce..eb5974bb7 100644
--- a/api/src/Shipment/ShippingService.php
+++ b/api/src/Shipment/ShippingService.php
@@ -40,10 +40,9 @@ function _build_headers()
 
     function __construct()
     {
-        global $shipping_service_api_url;
         global $shipping_service_app_url;
-        $this->shipping_api_url = $shipping_service_api_url;
         $this->shipping_app_url = $shipping_service_app_url;
+        $this->shipping_api_url = $shipping_service_app_url . "/api";
     }