Does not synchronize shipping methods via API sellers in Brazil

Hello good day
Products imported from sellers in Brazil are not synchronizing the shipping method, when your API synchronizes the values, your API does not change the shipping method, since the seller offered free shipping and at a certain time he charges the shipping, and your API when syncing it doesn’t change the shipping method that was previously free and changed to paid. This makes our operations impossible to take such losses. I expect more attention from you regarding us in Brazil. Hugs.

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