Are you using the Expense Receipt/Claim process for Corporate Cards?  Or are you doing everything directly through AP Bills/Adjustments and Payments?

If you’re using Expense Receipt/Claims, then the system creates a quick check which processing both the Expense and Payment at the same time with all transactions falling under the Employee as the vendor (even though it would be purchased from multiple vendors).  The Quick Check transactions will show up linked to the Credit Card cash account on the Reconciliation Statement.

If you’re processing via AP Bills and Adjustments and creating the bills to the multiple vendors and setting your payment method as “Credit Card” you’ll need to process each of those vendor payments individually.  The payments are what will show up on the Credit Card cash account on the Reconciliation Statement.  (You can also use Quick Checks manually to create the expense/payment in a single transaction to vendors, which saves the step of having to create the payment, but they do not work for refunds).

Regardless of method chosen, at the end of the credit card statement cycle, you’d do a Funds Transfer in Acumatica to move the payment of the credit card statement from your bank account to the corporate card(s) accounts.

In either scenario, you’d need to set your corporate card account(s) as reconciliation required and complete the reconciliations at the end of each statement cycle.  (You could also do some automation around this using integrations with your bank (import/process Bank Transactions).