Can you not add the packaging item as a re-work instead?
You can automate a re-work being added with order rules. This would add the weight, can charge a fee for the item and it will book the item out of stock if you have the re-work linked to the packaging SKU.
i use automated order rules to roundup weights for courier thresholds... for example if order weight is under 650g then do nothing as my courier tiered price then kicks in at 750g : 2kg : 5kg : 15kg : 25kg
orders with a weight between 651g - 700g round to 800g orders with weight between 1.8kg-1.99kg round to 2.5kg
etc
hope this helps and it doesnt add extra lines to the order
Can you not add the packaging item as a re-work instead?
You can automate a re-work being added with order rules. This would add the weight, can charge a fee for the item and it will book the item out of stock if you have the re-work linked to the packaging SKU.
i use automated order rules to roundup weights for courier thresholds... for example if order weight is under 650g then do nothing as my courier tiered price then kicks in at 750g : 2kg : 5kg : 15kg : 25kg
orders with a weight between 651g - 700g round to 800g
orders with weight between 1.8kg-1.99kg round to 2.5kg
etc
hope this helps and it doesnt add extra lines to the order