diff --git a/back/methods/mrw-config/createShipment.ejs b/back/methods/mrw-config/createShipment.ejs
index 65326112b..d927315ee 100644
--- a/back/methods/mrw-config/createShipment.ejs
+++ b/back/methods/mrw-config/createShipment.ejs
@@ -41,7 +41,7 @@
                             <mrw:Alto><%= mrw.defaultHeight %></mrw:Alto>
                             <mrw:Largo><%= mrw.defaultLength %></mrw:Largo>
                             <mrw:Ancho><%= mrw.defaultWidth %></mrw:Ancho>
-                            <mrw:Peso><%= mrw.defaultWeight %></mrw:Peso>
+                            <mrw:Peso><%= expeditionData.defaultWeight ?? mrw.defaultWeight %></mrw:Peso>
                         </mrw:BultoRequest>
                     </mrw:Bultos>
                 </mrw:DatosServicio>
diff --git a/back/methods/mrw-config/createShipment.js b/back/methods/mrw-config/createShipment.js
index 900e1fc0f..4c3c1bc4a 100644
--- a/back/methods/mrw-config/createShipment.js
+++ b/back/methods/mrw-config/createShipment.js
@@ -36,39 +36,44 @@ module.exports = Self => {
         }
 
         const query =
-            `SELECT 
-                CASE co.code 
-                    WHEN 'ES' THEN a.postalCode
-                    WHEN 'PT' THEN LEFT(a.postalCode, mc.portugalPostCodeTrim)
-                    WHEN 'AD' THEN REPLACE(a.postalCode, 'AD', '00')
-                END postalCode,
-                a.city,
-                a.street,
-                co.code countryCode,
-                c.fi,
-                c.name clientName,
-                c.phone,
-                DATE_FORMAT(t.shipped, '%d/%m/%Y') created,
-                t.shipped,
-                CONCAT( e.ticketFk, LPAD(e.counter, mc.counterWidth, '0')) reference,
-                LPAD(IF(mw.serviceType IS NULL, ms.serviceType, mw.serviceType), mc.serviceTypeWidth, '0') serviceType,
-                IF(mw.weekdays, 'S', 'N') weekDays,
-                oa.description deliveryObservation
-            FROM expedition e
-                JOIN ticket t ON e.ticketFk = t.id
-                JOIN agencyMode am ON am.id = t.agencyModeFk
-                JOIN mrwService ms ON ms.agencyModeCodeFk = am.code
-                LEFT JOIN mrwServiceWeekday mw ON mw.agencyModeCodeFk = am.code
-                    AND mw.weekDays & (1 << WEEKDAY(t.landed)) 
-                JOIN client c ON t.clientFk = c.id
-                JOIN address a ON t.addressFk = a.id
-                LEFT JOIN addressObservation oa ON oa.addressFk = a.id
-                    AND oa.observationTypeFk IN (SELECT id FROM observationType ot WHERE ot.code = 'delivery')
-                JOIN province p ON a.provinceFk = p.id
-                JOIN country co ON co.id = p.countryFk
-                JOIN mrwConfig mc
-            WHERE e.id = ?
-            LIMIT 1`;
+            `SELECT CASE co.code 
+                        WHEN 'ES' THEN a.postalCode
+                        WHEN 'PT' THEN LEFT(a.postalCode, mc.portugalPostCodeTrim)
+                        WHEN 'AD' THEN REPLACE(a.postalCode, 'AD', '00')
+                    END postalCode,
+                    a.city,
+                    a.street,
+                    co.code countryCode,
+                    c.fi,
+                    c.name clientName,
+                    c.phone,
+                    DATE_FORMAT(t.shipped, '%d/%m/%Y') created,
+                    t.shipped,
+                    CONCAT( e.ticketFk, LPAD(e.counter, mc.counterWidth, '0')) reference,
+                    LPAD(
+                        IF(mw.serviceType IS NULL, ms.serviceType, mw.serviceType),
+                        mc.serviceTypeWidth,
+                        '0'
+                    ) serviceType,
+                    IF(mw.weekdays, 'S', 'N') weekDays,
+                    oa.description deliveryObservation,
+                    pa.defaultWeight
+                FROM expedition e
+                    LEFT JOIN packaging pa ON e.packagingFk = pa.id
+                    JOIN ticket t ON e.ticketFk = t.id
+                    JOIN agencyMode am ON am.id = t.agencyModeFk
+                    JOIN mrwService ms ON ms.agencyModeCodeFk = am.code
+                    LEFT JOIN mrwServiceWeekday mw ON mw.agencyModeCodeFk = am.code
+                        AND mw.weekDays & (1 << WEEKDAY(t.landed)) 
+                    JOIN client c ON t.clientFk = c.id
+                    JOIN address a ON t.addressFk = a.id
+                    LEFT JOIN addressObservation oa ON oa.addressFk = a.id
+                        AND oa.observationTypeFk IN (SELECT id FROM observationType ot WHERE ot.code = 'delivery')
+                    JOIN province p ON a.provinceFk = p.id
+                    JOIN country co ON co.id = p.countryFk
+                    JOIN mrwConfig mc
+                WHERE e.id = ?
+                LIMIT 1`;
 
         const [expeditionData] = await Self.rawSql(query, [expeditionFk]);
 
diff --git a/back/models/mrw-config.js b/back/models/mrw-config.js
index 8bb24dbe5..8041bdcd1 100644
--- a/back/models/mrw-config.js
+++ b/back/models/mrw-config.js
@@ -21,7 +21,6 @@ module.exports = Self => {
 
     Self.sendXmlDoc = async function(path, params, contentType) {
         const parser = new DOMParser();
-
         const xmlTemplate = fs.readFileSync(path, 'utf-8');
         const renderedTemplate = ejs.render(xmlTemplate, params);
         const data = await axios.post(params.mrw.url, renderedTemplate, {
diff --git a/db/versions/11162-salmonBirch/00-firstScript.sql b/db/versions/11162-salmonBirch/00-firstScript.sql
new file mode 100644
index 000000000..2d94ccc04
--- /dev/null
+++ b/db/versions/11162-salmonBirch/00-firstScript.sql
@@ -0,0 +1,13 @@
+-- Place your SQL code here
+ALTER TABLE vn.packaging ADD IF NOT EXISTS defaultWeight INT NULL 
+    COMMENT 'default weight used in mrw';
+
+INSERT IGNORE INTO vn.packaging (id, defaultWeight) 
+    VALUES ('QB033', 3),
+    ('HC', 3),
+    ('kalan400', 4),
+    ('kalan577', 5),
+    ('guzma650', 6),
+    ('b-1', 7),
+    ('guzma1400', 9),
+    ('guzma1200', 9);
\ No newline at end of file