What happens when this goes wrong?
Every other page shows this payment working. Here you choose what breaks, and follow the damage — because a hold, a return or a missed cut-off is the system working as designed, and reading one calmly is the job.
Pick a failure above. Nothing here is invented — each one is a reason code this rail really uses, at the step where it really strikes.
One payment through a single STEP2-T clearing cycle and one TARGET2 settlement; real STEP2-T netting batches many payments from many participants across several daily cycles. Every failure here is authored on SEPA Credit Transfer through STEP2-T, with the sources that back it.