This assignment need to be done in Salesforce Apex.
These are the requirement.
- Use apex Callout,
- use coding only when necessary
- Create a currency custom object, and use scheduled apex to get latest currency rates from currencylayer every day.
- at opportunities object, create country, region, and currency fields, and fullfill the assignment needs.
- no need to generate report for the assignment
- Best to come with comment to help me understand with the code
Please note that for the currency object, you have to store the daily conversion rate, and was able to retrieve for to calculate the new amount with the chosen conversion rate you can propose new idea or steps if you think that my solution is not good..