Courier, Express, and Postal Observer: The Postal Service's customer interface systems (i.e. FAST, IMB, Postal One, Click n Ship, label printing, Postage purchase, etc.) were out as much as twelve hours on Sunday June 17. Problems with the customer interface was noticed by some commercial customers as early as 8 a.m. Consumers and small business began reporting problems on Twitter around 11 a.m. on the east coast. Problems on digital interfaces for business customers appeared to have been resolved by 8 p.m. on the east coast. Consumers and small business customers that use the Postal Service's web site continued to experience problems to nearly 11 p.m. The immediate impact of the shutdown of customer interface systems was likely minimal. Most customers had made their decision to use the Postal Service for print communications or parcel delivery long before the systems problems made printing labels, paying for postage, or arranging for acceptance was attempted on June 17. The customers that were likely most likely to switch to an alternative supplier on June 17th were small business and consumer parcel shippers that were using carrier websites to print labels and pay shipping charges. Read more!