Shipping costs + tax error

[biagiocom]

Hi, I am writing for a problem related to shipping costs. If I use the "Generate shipping costs in several countries" option, the system generates the shipping cost + taxes, even if the taxes are already included in the shipping costs. So the ads show a higher shipping cost than the real one. For example: if for the weight range 0.0001 Kg / 0.100 Kg I set a shipping cost with taxes included of € 6, in the google ads I will find € 7.32. How can I solve? Thank you