Payment requests will have priorities attached. Corporates may need to negotiate facilities to ensure that time-critical payments will flow when they are expected by suppliers and counterparties. As a result, some will no doubt choose to plan their payments and receipts more actively than in the past.
Our impression from recent discussions with corporate treasurers is that very few, if any, banks have yet done much talking to their customers about these issues. More careful management of liquidity by banks and their customers will reduce the likelihood of payments “gridlock” under RTGS.