سـهل

Working offline and syncing

How the cashier keeps selling when the internet drops, how invoices reach the server once it is back, and what to do when a document is rejected.

  1. How the cashier works without internet

    The internet drops and customers do not wait. This article explains what is stored on the device, how invoices are numbered temporarily, how they reach the server in the right order without duplicates, and the few operations that need a connection.

    5 min read

  2. Pending and rejected: what to do when an invoice does not arrive

    The sync indicator shows a number that will not drop to zero? This article explains the two different states behind the number, decodes the common rejection messages one by one, and says what the cashier can fix and what needs the manager.

    5 min read