diff --git a/pos_second_uom/__init__.py b/pos_second_uom/__init__.py
new file mode 100644
index 00000000000..0650744f6bc
--- /dev/null
+++ b/pos_second_uom/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/pos_second_uom/__manifest__.py b/pos_second_uom/__manifest__.py
new file mode 100644
index 00000000000..07b66ae0db7
--- /dev/null
+++ b/pos_second_uom/__manifest__.py
@@ -0,0 +1,19 @@
+{
+    "name": "POS Second UoM",
+    "description": """
+    This module allows cashier to sell product in second unit of measure
+    """,
+    "depends": [
+        "product",
+        "point_of_sale",
+    ],
+    "data": ["views/product_template.xml"],
+    "assets": {
+        "point_of_sale._assets_pos": [
+            "pos_second_uom/static/src/**/*",
+        ]
+    },
+    "license": "LGPL-3",
+    "application": True,
+    "installable": True,
+}
diff --git a/pos_second_uom/models/__init__.py b/pos_second_uom/models/__init__.py
new file mode 100644
index 00000000000..e8fa8f6bf1e
--- /dev/null
+++ b/pos_second_uom/models/__init__.py
@@ -0,0 +1 @@
+from . import product_template
diff --git a/pos_second_uom/models/product_template.py b/pos_second_uom/models/product_template.py
new file mode 100644
index 00000000000..199f1e54def
--- /dev/null
+++ b/pos_second_uom/models/product_template.py
@@ -0,0 +1,31 @@
+from odoo import fields, models, api
+
+
+class ProductTemplate(models.Model):
+    _inherit = "product.template"
+
+    uom_category_id = fields.Many2one(
+        comodel_name="uom.uom",
+        string="UoM Category",
+        related="uom_id.category_id",
+        store=True,
+    )
+
+    pos_secondary_uom_id = fields.Many2one(
+        comodel_name="uom.uom",
+        string="Secondary Unit of Measure",
+        domain="[('category_id', '=', uom_category_id), ('id', '!=', uom_id)]",
+    )
+
+    @api.onchange("uom_id")
+    def _onchange_uom_id(self):
+        self.pos_secondary_uom_id = False
+
+
+class ProductProduct(models.Model):
+    _name = "product.product"
+    _inherit = ["product.product"]
+
+    @api.model
+    def _load_pos_data_fields(self, config_id):
+        return super()._load_pos_data_fields(config_id) + ["pos_secondary_uom_id"]
diff --git a/pos_second_uom/static/src/js/add_quantity.js b/pos_second_uom/static/src/js/add_quantity.js
new file mode 100644
index 00000000000..40f0cde14c9
--- /dev/null
+++ b/pos_second_uom/static/src/js/add_quantity.js
@@ -0,0 +1,45 @@
+/** @odoo-module **/
+
+import { Component, useState } from "@odoo/owl";
+import { Dialog } from "@web/core/dialog/dialog";
+import { usePos } from "@point_of_sale/app/store/pos_hook";
+
+
+export class SecondaryUomDialog extends Component {
+    static template = "pos_secondary_uom.SecondaryUomDialog";
+    static components = { Dialog };
+
+    setup() {
+        this.pos = usePos();
+        this.state = useState({ quantity: 1 });
+
+        this.orderline = this.props.orderline;
+        const uomIds = this.orderline.product_id.uom_id.category_id.uom_ids;
+
+        this.baseUom = uomIds[0];
+        this.secondaryUom = uomIds[1];
+        this.conversionRatio = 1;
+        if (this.secondaryUom && this.baseUom) {
+            const secondaryFactor = this.secondaryUom.factor;
+            const baseFactor = this.baseUom.factor;
+            this.conversionRatio = baseFactor / secondaryFactor;
+        }
+    }
+
+    confirm() {
+        const enteredQty = parseFloat(this.state.quantity);
+        if (isNaN(enteredQty) || enteredQty <= 0) {
+            this.pos.env.services.notification.add("Enter a valid quantity", { type: "warning" });
+            return;
+        }
+
+        const baseQty = enteredQty * this.conversionRatio;
+        this.orderline.set_quantity(baseQty);
+        this.orderline.uom_id = this.secondaryUom;
+        this.props.close();
+    }
+
+    cancel() {
+        this.props.close();
+    }
+}
\ No newline at end of file
diff --git a/pos_second_uom/static/src/js/add_quantity.xml b/pos_second_uom/static/src/js/add_quantity.xml
new file mode 100644
index 00000000000..76b6d2d55be
--- /dev/null
+++ b/pos_second_uom/static/src/js/add_quantity.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<templates id="template" xml:space="preserve">
+
+    <t t-name="pos_secondary_uom.SecondaryUomDialog">
+        <div class="modal-backdrop show"></div>
+        <div class="modal d-block" tabindex="-1" role="dialog">
+            <div class="modal-dialog" role="document">
+                <div class="modal-content p-4">
+                    <div class="modal-header">
+                        <h5 class="modal-title">Enter Quantity in Dozen</h5>
+                         <button type="button" class="btn-close" aria-label="Close" t-on-click="cancel"></button>
+                    </div>
+                    <div class="modal-body">
+                        <div >
+                            <label for="secondary-uom-input">Quantity (Secondary UoM)</label>
+                            <input
+                                id="secondary-uom-input"
+                                type="number"
+                                t-model="state.quantity"    
+                            />
+                        </div>
+                    </div>
+                    <div class="modal-footer d-flex justify-end mt-3">
+                        <button type="button" class="btn btn-primary me-2" t-on-click="confirm">Confirm</button>
+                        <button type="button" class="btn btn-secondary" t-on-click="cancel">Discard</button>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </t>
+
+    <t t-name="pos_secondary_uom.ControlButtons" t-inherit="point_of_sale.ControlButtons" t-inherit-mode="extension">
+    <xpath expr="//SelectPartnerButton" position="after">
+            <button t-if="this.pos.selectedOrder.get_selected_orderline()?.product_id.pos_secondary_uom_id !== undefined and !currentOrder?.is_empty() and pos.get_order()?.uiState.selected_orderline_uuid" class="btn btn-light btn-lg lh-lg text-truncate w-auto" t-on-click="openSecondaryUomDialog">
+                Add Quantity
+            </button>   
+    </xpath>
+</t>
+
+</templates>
\ No newline at end of file
diff --git a/pos_second_uom/static/src/js/control_button.js b/pos_second_uom/static/src/js/control_button.js
new file mode 100644
index 00000000000..a28ec8edbd0
--- /dev/null
+++ b/pos_second_uom/static/src/js/control_button.js
@@ -0,0 +1,23 @@
+
+import { patch } from "@web/core/utils/patch";
+import { ControlButtons } from "@point_of_sale/app/screens/product_screen/control_buttons/control_buttons";
+import { SecondaryUomDialog } from "./add_quantity";
+
+
+patch(ControlButtons.prototype, {
+    async openSecondaryUomDialog() {
+        const order = this.pos.get_order();
+        const orderline = order.get_selected_orderline();
+
+        if (!orderline.product_id.uom_id.category_id.uom_ids[1]) {
+            this.env.services.notification.add("Select a product with a secondary UoM first.", {
+                type: "warning",
+            });
+            return;
+        }
+
+        this.dialog.add(SecondaryUomDialog, {
+            orderline,
+        });
+    },
+});
\ No newline at end of file
diff --git a/pos_second_uom/tests/__init__.py b/pos_second_uom/tests/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/pos_second_uom/views/product_template.xml b/pos_second_uom/views/product_template.xml
new file mode 100644
index 00000000000..4c9a668e68e
--- /dev/null
+++ b/pos_second_uom/views/product_template.xml
@@ -0,0 +1,12 @@
+<odoo>
+    <record id="view_product_template_form_secondary_uom" model="ir.ui.view">
+        <field name="name">product.template.form.secondary.uom</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="product.product_template_form_view"/>
+        <field name="arch" type="xml">
+            <xpath expr="//group[@name='pos']" position="inside">
+                <field name="pos_secondary_uom_id"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>
\ No newline at end of file