[ADD] MRP: Add Split and merge manufacturing orders

closes odoo/documentation#6337

X-original-commit: 83873dbd71
Signed-off-by: Zachary Straub (zst) <zst@odoo.com>

content/applications/inventory_and_mrp/manufacturing/management.rst

@@ -18,3 +18,4 @@ Manufacturing workflows
    management/scrap_manufacturing
    management/manufacturing_backorders
    management/configure_manufacturing_product
+   management/split_merge

content/applications/inventory_and_mrp/manufacturing/management/split_merge.rst

@@ -0,0 +1,82 @@
+====================================
+Split and merge manufacturing orders
+====================================
+
+In Odoo *Manufacturing*, it is possible to create manufacturing orders for a single unit of an item,
+or multiple units of the same item. In some cases, it may be necessary to split a manufacturing
+order that contains multiple units into two or more orders, or to merge two or more orders into a
+single order.
+
+.. important::
+   A manufacturing order can only contain one unit of a product, or multiple units of a single
+   product that all use the same Bill of Materials (BoM). As a result, it is only possible to merge
+   manufacturing orders when every order contains the same product being manufactured with the same
+   BoM.
+
+Split manufacturing orders
+==========================
+
+To split a manufacturing order into multiple orders, begin by navigating to
+:menuselection:`Manufacturing --> Operations --> Manufacturing Orders`, then select a manufacturing
+order. At the top of the page, next to the :guilabel:`New` button, the manufacturing order's
+reference number appears with a :guilabel:`⚙️ (settings)` button next to it.
+
+Click the :guilabel:`⚙️ (settings)` button to open the general settings for the manufacturing order,
+then select :guilabel:`Split`.
+
+.. image:: split_merge/settings-split.png
+   :align: center
+   :alt: The Settings and Split buttons on a manufacturing order.
+
+After selecting :guilabel:`Split`, a :guilabel:`Split production` pop-up window appears. In the
+:guilabel:`Split #` field, enter the number of manufacturing orders that the original order should
+be split into, then click outside of the field. A table appears below, with a line for each new
+manufacturing order that will be created by the split. In the :guilabel:`Quantity To Produce`
+column, enter the number of units that will be assigned to each new manufacturing order. Finally,
+click :guilabel:`Split` to split the manufacturing order.
+
+.. image:: split_merge/split-production-window.png
+   :align: center
+   :alt: The Split production pop-up window for a manufacturing order.
+
+After clicking :guilabel:`Split`, the original manufacturing order is split into the number of
+orders that was specified in the :guilabel:`Split #` field. The reference numbers for the new
+manufacturing orders are the reference number for the original order with *-###* tags added to the
+end.
+
+.. example::
+   Manufacturing order *WH/MO/00012* is split into three separate orders. The reference numbers for
+   the new orders are *WH/MO/00012-001*, *WH/MO/00012-002*, and *WH/MO/00012-003*.
+
+Merge manufacturing orders
+==========================
+
+To merge two or more manufacturing orders into a single order, begin by navigating to
+:menuselection:`Manufacturing --> Operations --> Manufacturing Orders`. Select the manufacturing
+orders that will be merged by activating the checkbox to the left of the name of each order.
+
+.. image:: split_merge/select-orders.png
+   :align: center
+   :alt: Select manufacturing orders that will be merged by clicking the checkbox for each.
+
+Once all manufacturing orders have been selected, click the :guilabel:`Actions` button at the top of
+the page, then select :guilabel:`Merge` from the drop-down menu.
+
+.. image:: split_merge/actions-merge.png
+   :align: center
+   :alt: The Actions and Merge buttons on the Manufacturing Orders page.
+
+The selected manufacturing orders are merged into a single order. The reference number for the new
+manufacturing order is the next sequential number that has *not* already been assigned to an order.
+
+.. example::
+   The last reference number used for a manufacturing order was *WH/MO/00012*. Two manufacturing
+   orders, *WH/MO/00008* and *WH/MO/00009*, are merged into a single order. The reference number for
+   the manufacturing order created by the merger is *WH/MO/00013*.
+
+In the :guilabel:`Source` field for the manufacturing order created by the merger, the reference
+numbers of the manufacturing orders that were merged are listed.
+
+.. example::
+   Manufacturing orders *WH/MO/00009* and *WH/MO/00010* are merged to create *WH/MO/00011*. The
+   source field for *WH/MO/00011* lists both *WH/MO/00009* and *WH/MO/00010*.