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-Purchase Export BC Module
-This plan covers the implementation of the "export PO to BC Format" feature for Odoo 19, added as a custom module.
+# Purchase Export BC Format
 
-purchase_export_bc (New Module)
-Module Structure:
-- init.py and manifest.py: Describe the new module and its dependency on purchase.
-- models/__init__.py and models/purchase_order.py: Extend the purchase.order model by adding the "action_export_bc" method. This method will filter order_line, group them by the product's category name (product_id.categ_id.name), create a new sheet per category, evaluate x_studio_bc_item_id and the units/packaging, generate the Excel document using xlsxwriter, and return an ir.actions.act_url to download it.
-- views/purchase_order_views.xml: Extend purchase.view_purchase_order_form to inject a new button "action_export_bc" into the existing <header>.
+**Purchase Export BC Format** is a custom Odoo 19 module that provides functionality to export a Purchase Order's details into an Excel (`.xlsx`) format. 
 
-Verification Plan
-Manual Verification
-1. Access Odoo -> App -> Update App List and install the new "Purchase Export BC Format" module.
-2. Go to the Purchase application and open an existing Purchase Order.
-3. Click the new button "Export PO to BC Format" in the header.
-4. Verify an Excel file is downloaded.
-5. Open the Excel file and verify:
-    - There is one sheet per item category.
-    - The headers are: "Type", "Item No.", "Description", "Qty", "Satuan".
-    - The "Type" column has the static value "Item".
-    - "Qty" perfectly matches the ordered quantity.
-    - The packaging name and product categories map properly.
\ No newline at end of file
+## Features
+
+- **One-Click Export**: Adds an "Export PO to BC Format" button directly inside the header of the Purchase Order form view (visible in the `purchase` or `done` states).
+- **Automated Categorization**: Groups the purchase order lines by their Product Category. For each category, a dedicated worksheet is created in the generated Excel file.
+- **Custom Data Mapping**: Fetches specific product data, such as a custom field `x_studio_bc_item_id` for custom Item Numbers.
+- **Unit of Measure Handling**: Intelligently determines the "Satuan" (Unit), favoring the Product Packaging if defined, and otherwise falling back to the standard Unit of Measure (`product_uom_id`).
+
+## Excel File Structure
+
+For each generated worksheet (named after the product category), the layout is strictly mapped according to the requested BC format:
+
+| Column Header | Data Source / Description |
+|---|---|
+| **Type** | Static value `Item`. |
+| **Item No.** | The value from the product's custom field `x_studio_bc_item_id`. |
+| **Description** | The Product's name. |
+| **Qty** | The ordered quantity. |
+| **Satuan** | The Packaging used (if any). If none, it uses the product's Unit of Measure name. |
+
+## Installation
+
+1. Place the `purchase_export_bc` module directory into your Odoo 19 `custom` addons path.
+2. Restart the Odoo server.
+3. Turn on **Developer Mode** in Odoo.
+4. Go to **Apps** -> **Update Apps List**.
+5. Search for `Purchase Export BC Format` and click **Activate**.
+6. **Requirement**: Ensure that the Python library `xlsxwriter` is installed in your Odoo environment:
+   ```bash
+   pip install xlsxwriter
+   ```
+
+## Usage
+
+1. Navigate to the **Purchase** app in Odoo.
+2. Open any existing Purchase Order that is confirmed.
+3. Click the **Export PO to BC Format** button located in the header.
+4. The system will automatically generate and prompt you to download the Excel file named `PO_Export_BC_[Order_Name].xlsx`.
+
+## Author
+
+- Aziz