How are cross-rates populated?
Cross-rates are rates between your non-core currencies. For example if your only core currency is USD, then you would load rates between USD and all other currencies you need. Cross-rates are rates such as GBP>EUR.
You have the option to load all cross-rates directly from the rates source, as you do for your core currency rates. However, you can also choose to use the FXLoader triangulation function to create the cross-rates. For example, this would create the GBP>EUR rate from a calculation involving the USD>GBP rate and USD>EUR rate that came from the source. Most of our clients choose to use triangulation, but some prefer to get all combinations directly from the source.