Some industries deal with the challenge of customers that pay invoices line-by-line. This is especially true in health care and professional staffing industries where one invoice contains line items for each resource and their billable hours. If an individual line on an invoice is in dispute, which is common in professional services, rather than holding payment on the entire invoice, the customer pays for the lines they approve and indicate those that are rejected. BC only supports invoice level payment. We recently lost a bid to a staffing services provider because Acumatica does support A/R invoice line payments.

https://toperppartners.com/blog/acumatica-invoice-line-payments/