Да, неправильный метод я тебе сказал, извиняюсь
Описание методов этого определения - в ноте 657146
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ME_CALCUL_SRV_TAX (Purchase order, service items)
With this method you can decide, whether a new tax calculation on service level is supposed to be triggered in case of changes on item level.
Example: You use the function from Note 493515 and use the tax jurisdiction code from the delivery address of the item for the tax calculation. You want to use the tax jurisdiction code from the delivery address for the tax calculation on service level, too. For that, if you change the tax jurisdiction code in the delivery address of the item, you have to execute the tax calculation on service level again (for all services under this item). The sample implementation deals with this case.
ME_TAXCOM_MEPO (Purchase order, material items)
For the specification of the tax rate, you want to transfer more data to the external tax system than provided in the standard system. Or you want to change standard data.
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Выбирай из этих двух.