Hi,

When creating a new task from the Project dashboard, Odoo automatically passes certain context values — such as sale_line_id — especially if the task is being created from a related Sales Order. If you want to remove the sale_line_id from the context to make the task independent of the sale order, you can override the context in your custom module.

Here’s how you can handle it:

    Inherit the Action or Button:

    Go to Settings → Technical → Views and locate the action used for creating tasks.

    Override the Context:

    In your custom module, inherit this action and remove the sale_line_id from its context:

    <record id="action_view_task_custom" model="ir.actions.act_window">

        <field name="inherit_id" ref="project.action_view_task"/>

        <field name="context">{'default_sale_line_id': False}</field>

    </record>

    Alternative:

    You can also override the create method of the task model and simply pop the key:

    @api.model

    def create(self, vals):

        vals.pop('sale_line_id', None)

        return super(ProjectTask, self).create(vals)

This ensures that the sale_line_id won’t be linked automatically when creating new tasks from the dashboard.

Hope it helps