mrp.message.view.form mrp.message
mrp.message.view.form.embedded.product mrp.message
mrp.message.view.form.embedded.bom mrp.message
mrp.message.view.tree mrp.message mrp.message.kanban mrp.message
Product:

mrp.message.view.search mrp.message Work Order Messages ir.actions.act_window mrp.message form tree,kanban,form {'search_default_active_message': True}

Click here to create a new Work Order Message.

Work Order Messages are used to warn users about any change in the product, process, etc. These messages will appear on the involved Work Orders.