Hi All,

Im trying to write an automation to generate an internal reference based on variant attributes.

I have created an automation to activate on creation, filtered to only act on products with attributes. Here is the code, it doesn't seem to work but I cant think of why, can anyone suggest something to try?

    variant_values = []
    for line in record.attribute_line_ids:
        for value in line.value_ids:
            variant_values.append(value.name)

    # Create the internal reference
    base_reference = record.default_code or "PROD"
    # This code will change, just a place holder for now to test
	​  new_internal_ref = base_reference + "-" + "-".join(variant_values)

    # update the record
    record.write({'default_code': new_internal_ref})