better error and update comments

main.go

@@ -9,7 +9,7 @@ import (
 )
 
 var (
-	configuredProviders []AccountProvider // Any providers that are successfully configured get added to this slice
+	configuredProviders []AccountProvider // Any account providers that are successfully configured get added to this slice
 	ynabClient          *ynab.Client      // YNAB HTTP client
 )
 
@@ -29,7 +29,8 @@ func init() {
 		}
 	}
 
-	// Loop through all providers and attempt to configure them
+	// Loop through all account providers and attempt to configure them
+	// if configuration fails, the provider will not be used
 	configuredProviders = make([]AccountProvider, 0)
 	for _, p := range allProviders {
 		err := p.Configure()
@@ -60,7 +61,7 @@ func main() {
 				continue
 			}
 			if len(balances) != len(accountIDs) {
-				log.Printf("mismatched balance and accountID slice lengths - expected the same: balances length = %d, accountIDs length = %d", len(balances), len(accountIDs))
+				log.Printf("'%s' provider data validation error: mismatched balance and accountID slice lengths - expected the same: balances length = %d, accountIDs length = %d", p.Name(), len(balances), len(accountIDs))
 				continue
 			}
 			for i := range balances {