thank you for your answer. Actually, we already got values that are necessary for ecommerce tracking into meta data. Do you think that any script as you advised can help us in this case? As the values are already pulled out according. Furthermore, no discount codes can be applied.
I am sure it is a lot of tweaking and workaround and definitely the best practise but if it is possible then we would like to try it.
If you already have the values in meta data, then you can simply add these into Tealium IQ on the data layer tab, and they will be imported for you. Just go to add a new data source, enter the name of the meta tag, then select "Meta Tag" from the drop down list.
I hope this helps.