Your planners know the pain: five separate manufacturing orders for the same finished product, each spinning up its own work orders, its own setup time, and its own line changeover — when they could all run as a single batch. Or the opposite: one enormous MO for 5,000 units that has to be broken into shift-sized lots so the shop floor can actually schedule it. Odoo core (mrp.production) gives you no first-class way to do either. Planners resort to manually cancelling and re-keying orders, which destroys the link back to the originating sales orders and blows up component reservations.

Manufacturing Order Merge & Split is a build-to-order Odoo module that ECOSIRE designs, builds, installs, and supports specifically for your MRP workflow. It adds two governed operations directly onto the Manufacturing app: Merge — select multiple confirmed MOs of the same product (and, where you require it, the same Bill of Materials and unit of measure) and combine them into one consolidated batch order; and Split — take a large MO and divide it into several sub-orders by quantity, work-center capacity, or a lot count you specify. Component demand is auto-aggregated on merge so stock.move reservations roll up correctly, and traceability links — source MOs, originating sales/purchase documents, and lot/serial genealogy — are preserved on both operations so your audit trail never breaks.

This is not an off-the-shelf apps.odoo.com download. There is no instant ZIP. ECOSIRE writes the module against your exact Odoo version (17, 18, or 19), your BoM structure, your work-center topology, and your traceability policy, then deploys it to your instance and hands over the source. Typical delivery is one working week depending on scope and integration surface.

How it's built (for the technically inclined): A clean addon with its own __manifest__.py declaring the mrp dependency. New models (mrp.production.merge.wizard, mrp.production.split.wizard) drive the operations as TransientModel wizards launched from server actions on mrp.production. Merge logic groups eligible orders, sums quantities and component stock.move demand, and writes a new consolidated mrp.production with @api.depends computed roll-ups; split logic proportionally divides quantity and moves across N children while linking each back to the parent via a relational field. Access is locked down through ir.model.access.csv plus record rules so only users in the Manufacturing / Planner group can merge or split, and only within their allowed operation types. Batch labels and a merge/split summary are rendered as QWeb reports, and every merge or split can be triggered programmatically over XML-RPC / JSON-RPC for integration with an external scheduler or MES. Works on both Community and Enterprise editions of Odoo.