Orion Law Management Orion Desktop Articles Accounts Receivable Finding Client-Matter using Invoice Number Updated April 14, 2025 17:54 To determine the Client-Matter for a specific Invoice Number, go into the Accounts Receivable Manager and begin entry of a new transaction (click the NEW Button to access the AR Entry screen). Enter the correct date and then click on the small icon to the right of the Client-Matter field. Enter the Invoice Number referenced on the check you received and click the OK Button. Orion will locate the Client-Matter to which the invoice belongs and populate the Client-Matter field with the appropriate Client-Matter Number. Was this article helpful? Yes/No