diff --git a/modules/ticket/back/methods/ticket-collection/getUncheckedTicket.js b/modules/ticket/back/methods/ticket-collection/getUncheckedTicket.js
new file mode 100644
index 0000000000..64a4c563c6
--- /dev/null
+++ b/modules/ticket/back/methods/ticket-collection/getUncheckedTicket.js
@@ -0,0 +1,35 @@
+module.exports = Self => {
+    Self.remoteMethod('getUncheckedTicket', {
+        description:
+            'Get boolean if the collection of ticket has a ticket not checked',
+        accessType: 'READ',
+        accepts: [{
+            arg: 'ticketFk',
+            type: 'int',
+            required: true,
+            description: 'Ticket id'
+        }],
+        returns: {
+            type: 'boolean',
+            root: true
+        },
+        http: {
+            path: `/getUncheckedTicket`,
+            verb: 'GET'
+        }
+    });
+
+    Self.getUncheckedTicket = async ticketFk => {
+        const result = await Self.rawSql(`
+           SELECT tc2.ticketFk
+                            FROM vn.ticketCollection tc
+                                JOIN vn.ticketCollection tc2 ON tc2.collectionFk  = tc.collectionFk
+                                LEFT JOIN vn.ticketState ts ON ts.ticketFk = tc2.ticketFk
+                                JOIN vn.state s ON s.id = ts.stateFk
+                                JOIN vn.state s2 ON s2.code = 'CHECKED'
+                            WHERE tc.ticketFk = ? AND s.order < s2.id
+                            LIMIT 1;`,
+        [ticketFk]);
+        return result.length > 0 && result[0]['ticketFk'] > 0;
+    };
+};
diff --git a/modules/ticket/back/models/ticket-collection.js b/modules/ticket/back/models/ticket-collection.js
new file mode 100644
index 0000000000..55920f2a22
--- /dev/null
+++ b/modules/ticket/back/models/ticket-collection.js
@@ -0,0 +1,3 @@
+module.exports = Self => {
+    require('../methods/ticket-collection/getUncheckedTicket')(Self);
+};