If you want to show shipping charge on checkout real time base on product then you have to use carrier service shopify api to generate shipping base on product.
For that you need API knowledge and standard shopify plan. if you need any help let me know i can do this or can help with your process.
Hey there, @janbelmiro
Bo here from Shopify Support!
That is a really great question. One option here would be to set up weight-based shipping rates and setting the dropshipped goods' weight to 0. In doing so, you can offer free shipping for orders that are just drop shipped goods and add no additional weight to orders that are mixed! You will need to add a new weight-based rate incorporating the default packaging weight ranging from 0 to however heavy your default package is. You will then go to your product bulk editor in your Shopify Admin and change all the dropshipped products' weight to zero.
Let me know how this goes and if there is anything else I can assist you with, I'm happy to help!
All the Best,
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