diff --git a/db/dump/fixtures.sql b/db/dump/fixtures.sql
index 9fc4d4fb1..04846435f 100644
--- a/db/dump/fixtures.sql
+++ b/db/dump/fixtures.sql
@@ -3697,15 +3697,19 @@ UPDATE vn.collection
 UPDATE vn.sale
 	SET isPicked =FALSE;
 
-INSERT INTO machineWorkerConfig(maxHours)
+INSERT INTO vn.machineWorkerConfig(maxHours)
 	VALUES(12);
 
-INSERT INTO workerAppTester(workerFk) VALUES(66);
+INSERT INTO vn.workerAppTester(workerFk) VALUES(66);
 
 INSERT INTO `vn`.`machine` (`plate`, `maker`, `model`, `warehouseFk`, `departmentFk`, `type`, `use`, `productionYear`, `workerFk`, `companyFk`)
     VALUES
         ('RE-003', 'IRON', 'JPH-24', 60, 23, 'ELECTRIC TOW', 'Drag cars', 2020, 103, 442);
 
 
-INSERT INTO machineWorker(workerFk,machineFk,inTimed)
-    VALUES (104,1,'2001-01-01 10:00:00.00.000');
\ No newline at end of file
+INSERT INTO vn.machineWorker(workerFk,machineFk,inTimed)
+    VALUES (104,1,'2001-01-01 10:00:00.00.000');
+
+UPDATE vn.buy
+    SET itemOriginalFk = 1
+    WHERE id = 1;
\ No newline at end of file
diff --git a/modules/ticket/back/methods/sale-tracking/specs/updateTracking.spec.js b/modules/ticket/back/methods/sale-tracking/specs/updateTracking.spec.js
new file mode 100644
index 000000000..2756bc09e
--- /dev/null
+++ b/modules/ticket/back/methods/sale-tracking/specs/updateTracking.spec.js
@@ -0,0 +1,78 @@
+const {models} = require('vn-loopback/server/server');
+
+fdescribe('saleTracking updateTracking()', () => {
+    const saleFk = 1;
+    const originalQuantity = 10;
+    const code = 'PREPARED';
+    const isChecked = true;
+    const buyFk = 1;
+    const isScanned = false;
+
+    beforeAll(async() => {
+        ctx = {
+            req: {
+                accessToken: {userId: 104},
+                headers: {origin: 'http://localhost'},
+            }
+        };
+    });
+
+    it('should add a new saleTracking and saleBuy', async() => {
+        const tx = await models.SaleTracking.beginTransaction({});
+        const options = {transaction: tx};
+
+        try {
+            const saleTrackingBefore = await models.SaleTracking.find(null, options);
+            const saleBuyBefore = await models.SaleBuy.find(null, options);
+            await models.SaleTracking.updateTracking(
+                ctx,
+                saleFk,
+                originalQuantity,
+                code,
+                isChecked,
+                buyFk,
+                isScanned,
+                options
+            );
+
+            const saleTrackingAfter = await models.SaleTracking.find(null, options);
+            const saleBuyAfter = await models.SaleBuy.find(null, options);
+
+            expect(saleTrackingAfter.length).toEqual(saleTrackingBefore.length + 1);
+            expect(saleBuyAfter.length).toEqual(saleBuyBefore.length + 1);
+
+            await tx.rollback();
+        } catch (e) {
+            await tx.rollback();
+            throw e;
+        }
+    });
+
+    it('should only update a saleTracking', async() => {
+        const tx = await models.SaleTracking.beginTransaction({});
+        const options = {transaction: tx};
+        const saleFk = 2;
+
+        try {
+            const saleTrackingBefore = await models.SaleTracking.find(null, options);
+            await models.SaleTracking.updateTracking(
+                ctx,
+                saleFk,
+                originalQuantity,
+                code,
+                isChecked,
+                buyFk,
+                isScanned,
+                options
+            );
+            const saleTrackingAfter = await models.SaleTracking.find(null, options);
+
+            expect(saleTrackingAfter.length).toEqual(saleTrackingBefore.length + 1);
+
+            await tx.rollback();
+        } catch (e) {
+            await tx.rollback();
+            throw e;
+        }
+    });
+});
diff --git a/modules/ticket/back/methods/sale-tracking/updateTracking.js b/modules/ticket/back/methods/sale-tracking/updateTracking.js
index 453b0b0c6..7cb2b4a58 100644
--- a/modules/ticket/back/methods/sale-tracking/updateTracking.js
+++ b/modules/ticket/back/methods/sale-tracking/updateTracking.js
@@ -39,7 +39,7 @@ module.exports = Self => {
         }
     });
 
-    Self.updateTracking = async(ctx, saleFk, originalQuantity, code, isChecked, buyFk, isScanned, options) => {
+    Self.updateTracking = async(ctx, saleFk, originalQuantity, code, isChecked, buyFk, isScanned = null, options) => {
         const userId = ctx.req.accessToken.userId;
         const models = Self.app.models;
         const myOptions = {};
@@ -58,24 +58,31 @@ module.exports = Self => {
                 where: {code},
             }, myOptions);
 
-            const attributes = {
+            const uniqueAttributes = {
                 saleFk,
+                workerFk: userId,
+                stateFk: state?.id,
+            };
+            const attributes = {
                 isChecked,
                 originalQuantity,
-                workerFk: userId,
-                stateFk: state.id,
-                isScanned: isScanned === undefined ? null : isScanned,
+                isScanned
             };
 
             const saleTracking = await models.SaleTracking.findOne({
-                where: attributes,
+                where: uniqueAttributes,
             }, myOptions);
 
-            if (!saleTracking)
-                await models.SaleTracking.create(attributes, myOptions);
-
-            else
-                await saleTracking.updateAttributes(attributes, myOptions);
+            if (!saleTracking) {
+                await models.SaleTracking.create({
+                    ...uniqueAttributes,
+                    ...attributes
+                }, myOptions);
+            } else {
+                await saleTracking.updateAttributes({
+                    ...attributes
+                }, myOptions);
+            }
 
             let isBuy;
             if (buyFk) {
diff --git a/modules/ticket/back/models/sale-buy.json b/modules/ticket/back/models/sale-buy.json
index 5279e6787..60ff2bef4 100644
--- a/modules/ticket/back/models/sale-buy.json
+++ b/modules/ticket/back/models/sale-buy.json
@@ -17,9 +17,6 @@
         },
         "created": {
             "type": "date"
-        },
-        "isChecked": {
-            "type": "number"
         }
     },
     "relations": {
@@ -27,6 +24,11 @@
             "type": "belongsTo",
             "model": "Sale",
             "foreignKey": "saleFk"
+        },
+        "worker": {
+            "type": "belongsTo",
+            "model": "Worker",
+            "foreignKey": "workerFk"
         }
     }
 }