Yes. Tested parts leave our Cairo warehouse by express courier, and where a component genuinely cannot be obtained we say so at once rather than leaving the enquiry open.

Because digitisation that genuinely replaces a process removes the fallback as well as the paperwork. Where a manual procedure still exists, an outage is slow and irritating. Where the paper path has been decommissioned — the forms gone, the staff never trained on them, the receiving side unable to accept them — an outage is not slow. The process simply cannot be performed.

Rarely a practical one. Maintaining a parallel manual path that is never used is expensive and it degrades quietly, so when it is finally needed it usually does not work either. The realistic response is to make the digital path dependable rather than to preserve a paper one that is already notional.

That availability has to be engineered at the component level, because there is no organisational workaround beneath it. The parts that redundancy relies on need to be physically present, since no amount of process design compensates for a controller that cannot be replaced.

Yes. Systems that underpin an established digital process tend to be long-serving, well past OEM end of support, and unusually difficult to take out of service for a refresh.