diff --git a/loopback/locale/en.json b/loopback/locale/en.json
index d9d9c8511..f0b7d6eca 100644
--- a/loopback/locale/en.json
+++ b/loopback/locale/en.json
@@ -236,6 +236,6 @@
 	"Cannot send mail": "Cannot send mail",
 	"CONSTRAINT `chkParkingCodeFormat` failed for `vn`.`parking`": "CONSTRAINT `chkParkingCodeFormat` failed for `vn`.`parking`",
 	"This postcode already exists": "This postcode already exists",
-	"Original invoice not found": "Original invoice not found"
-
+	"Original invoice not found": "Original invoice not found",
+    "The quantity claimed cannot be greater than the quantity of the line": "The quantity claimed cannot be greater than the quantity of the line"
 }
diff --git a/loopback/locale/es.json b/loopback/locale/es.json
index b9933f596..84722ea5d 100644
--- a/loopback/locale/es.json
+++ b/loopback/locale/es.json
@@ -372,5 +372,6 @@
 	"The entry not have stickers": "La entrada no tiene etiquetas",
 	"Too many records": "Demasiados registros",
 	"Original invoice not found": "Factura original no encontrada",
-	"The entry has no lines or does not exist": "La entrada no tiene lineas o no existe"
+	"The entry has no lines or does not exist": "La entrada no tiene lineas o no existe",
+    "The quantity claimed cannot be greater than the quantity of the line": "La cantidad reclamada no puede ser mayor que la cantidad de la línea"
 }
diff --git a/loopback/locale/fr.json b/loopback/locale/fr.json
index 601fe35f5..a6648b186 100644
--- a/loopback/locale/fr.json
+++ b/loopback/locale/fr.json
@@ -361,6 +361,6 @@
 	"The invoices have been created but the PDFs could not be generated": "La facture a été émise mais le PDF n'a pas pu être généré",
 	"It has been invoiced but the PDF of refund not be generated": "Il a été facturé mais le PDF de remboursement n'a pas été généré",
 	"Cannot send mail": "Impossible d'envoyer le mail",
-    "Original invoice not found": "Facture originale introuvable"
-
+    "Original invoice not found": "Facture originale introuvable",
+    "The quantity claimed cannot be greater than the quantity of the line": "Le montant réclamé ne peut pas être supérieur au montant de la ligne"
 }
diff --git a/loopback/locale/pt.json b/loopback/locale/pt.json
index a6a65710f..a43f0e780 100644
--- a/loopback/locale/pt.json
+++ b/loopback/locale/pt.json
@@ -361,5 +361,6 @@
 	"The invoices have been created but the PDFs could not be generated": "Foi faturado, mas o PDF não pôde ser gerado",
 	"It has been invoiced but the PDF of refund not be generated": "Foi faturado mas não foi gerado o PDF do reembolso",
     "Original invoice not found": "Fatura original não encontrada",
-	"Cannot send mail": "Não é possível enviar o email"
+	"Cannot send mail": "Não é possível enviar o email",
+    "The quantity claimed cannot be greater than the quantity of the line": "O valor reclamado não pode ser superior ao valor da linha"
 }
diff --git a/modules/claim/back/methods/claim-beginning/specs/claim-beginning.spec.js b/modules/claim/back/methods/claim-beginning/specs/claim-beginning.spec.js
new file mode 100644
index 000000000..b7974ad23
--- /dev/null
+++ b/modules/claim/back/methods/claim-beginning/specs/claim-beginning.spec.js
@@ -0,0 +1,55 @@
+const models = require('vn-loopback/server/server').models;
+const LoopBackContext = require('loopback-context');
+
+describe('ClaimBeginning model()', () => {
+    const claimFk = 1;
+    const activeCtx = {
+        accessToken: {userId: 18},
+        headers: {origin: 'localhost:5000'},
+        __: () => {}
+    };
+
+    beforeEach(() => {
+        spyOn(LoopBackContext, 'getCurrentContext').and.returnValue({
+            active: activeCtx
+        });
+    });
+
+    it('should change quantity claimed', async() => {
+        const tx = await models.ClaimBeginning.beginTransaction({});
+
+        let error;
+        try {
+            const options = {transaction: tx};
+            const claim = await models.ClaimBeginning.findOne({where: {claimFk}}, options);
+            const sale = await models.Sale.findById(claim.saleFk, {}, options);
+            await claim.updateAttribute('quantity', sale.quantity - 1, options);
+
+            await tx.rollback();
+        } catch (e) {
+            error = e;
+            await tx.rollback();
+        }
+
+        expect(error).toBeUndefined();
+    });
+
+    it('should throw error when quantity claimed is greater than quantity of the sale', async() => {
+        const tx = await models.ClaimBeginning.beginTransaction({});
+
+        let error;
+        try {
+            const options = {transaction: tx};
+            const claim = await models.ClaimBeginning.findOne({where: {claimFk}}, options);
+            const sale = await models.Sale.findById(claim.saleFk, {}, options);
+            await claim.updateAttribute('quantity', sale.quantity + 1, options);
+
+            await tx.rollback();
+        } catch (e) {
+            error = e;
+            await tx.rollback();
+        }
+
+        expect(error.toString()).toContain('The quantity claimed cannot be greater than the quantity of the line');
+    });
+});
diff --git a/modules/claim/back/models/claim-beginning.js b/modules/claim/back/models/claim-beginning.js
index d269b2285..3dc9261c3 100644
--- a/modules/claim/back/models/claim-beginning.js
+++ b/modules/claim/back/models/claim-beginning.js
@@ -10,16 +10,21 @@ module.exports = Self => {
     });
 
     Self.observe('before save', async ctx => {
+        const options = ctx.options;
+        const models = Self.app.models;
+        const saleFk = ctx?.currentInstance?.saleFk || ctx?.instance?.saleFk;
+        const sale = await models.Sale.findById(saleFk, {fields: ['ticketFk', 'quantity']}, options);
+
         if (ctx.isNewInstance) {
-            const models = Self.app.models;
-            const options = ctx.options;
-            const instance = ctx.instance;
-            const ticket = await models.Sale.findById(instance.saleFk, {fields: ['ticketFk']}, options);
-            const claim = await models.Claim.findById(instance.claimFk, {fields: ['ticketFk']}, options);
-            if (ticket.ticketFk != claim.ticketFk)
+            const claim = await models.Claim.findById(ctx.instance.claimFk, {fields: ['ticketFk']}, options);
+            if (sale.ticketFk != claim.ticketFk)
                 throw new UserError(`Cannot create a new claimBeginning from a different ticket`);
         }
+
         await claimIsEditable(ctx);
+
+        if (sale?.quantity && ctx.data?.quantity && ctx.data.quantity > sale?.quantity)
+            throw new UserError('The quantity claimed cannot be greater than the quantity of the line');
     });
 
     Self.observe('before delete', async ctx => {