01) Access the Control Panel
02) After login click Configuration >> Currency Exchange Store Settings
03) On the Choose the API line to refresh the product price
04) Click Options >> EDIT
Comments:
For automatic updating to occur the product code field must be the currency code when entering / editing products, for example: USD
Choose an API of your choice, some are paid and others are free, for more information please contact the API website directly.
In the currencylayer.com API requires filling in the KEY API field in the KEY KEY line currencylayer.com
05) After clicking on UPDATE
06) After defining your API set your profit rate in the Profit line to add in the price get from api
If you want to add an additional fee in the line Tax percentage to add in the price get from api