Magda Thanks for your answer and advice !
My probleme is that I want to allow my customers a fast shipping solution and with ePacket it's not so fast the supplier announce 15 - 30 days for ePacket and with DHL it's 5-9 days so it's a very important difference.
I have selected 9 supplier for my shop, 5 are oberlo verified, 3 are oberlo classic suppliers, 1 is from aliexpress and the lastone is printful.
The order placed was with an oberlo classic supplier and 25% of my product are coming from them only because they offer standard shipping with ePacket and Fast shipping with DHL !
I don't want that my customer will have to face the same problem ....
By the way I have checked the DHL terms and conditions AND I found that only the contractor is required to pay the customs clearance and this within 30 days, so I will require an invoice, which they can not do because according to their terms and conditions I am not a contractor !
I would tell you what that gave to it
regarding ePacket solution, I found this on oberlo help center :
* France: Packages can be shipped to mainland France with zip codes that start with 01 to 95. The packages cannot currently be shipped to overseas territories, including Corsica, Guadeloupe, Martinique, French Guiana, Reunion, St. Pierre and Miquelon and Mayotte.
Corsica isn't an overseas territory and have a postal code starting by 20, do you know if it's okay ? because I'm based in Corsica lol :-S