Hey @semighoti, this is an error coming from the Odoo API and I am not quite sure what it means. Seems like the ID 13 doesn’t exist where your Odoo instance would be expecting it.
In the past I have seen some fields requiring an array format. In n8n this could be achieved through an expression like {{[13]}}, see here: Odoo node ecommerce category, pricelist and image/attachment issues - #9 by MutedJam
Does this perhaps also work for your field?