A client's statement of account over a period of the business's own days (the sales_settings time zone): the balance they owed before it (opening), each invoice issued, payment received, credit and write-off in it with a running balance, the balance at its end (closing), and what was still owed at its end aged current / 1-30 / 31-60 / 61-90 / over 90 days past due, counted as sales_receivables counts. Only issued invoices count: drafts and cancelled invoices never do. Money is integer CENTS in each invoice's own currency, one section per currency, never converted or added across currencies; read the figures as given. It prepares nothing and sends nothing: returns the figures, document_path (the print-ready page, while signed in) and pdf_next_call (the statement_pdf call that makes the PDF). A statement with more than 150 rows lists its first rows, whole business days only, and lines_cut says which and gives the next_call that lists the rest; the balances, totals and ageing always cover the whole period. When the result has a second content block, it is the statement as copy-ready text (a very long one shortened), and hosts that draw MCP Apps show the statement with a Copy button, as plain text when it is too long to draw as a document. Refusals: a client_id that is not one of your clients is NOT_FOUND (find it with invoice_client_search or invoice_client_list); a date not written YYYY-MM-DD, a to after today, a from after to, or a period longer than 366 days is VALIDATION_ERROR naming the field; a client with more than 2000 issued invoices is PAYLOAD_TOO_LARGE SIMPLER_SALES_STATEMENT_TOO_LARGE (sales_receivables still ages them). Free.