Repair dropped terminal authorization callbacks
Small routing changes can appear harmless until payment state stops completing.
Fast recovery often has to coexist with the need to preserve a trustworthy transaction record.
“The customer’s paid, but my screen still says pending — that’s a hard conversation at a queue.”
Kekeli Keita · Café Owner
Runs a busy independent café and uses a portable terminal at the counter.
What pulls against what
- fast recovery vs. transaction integrity
- narrow fix vs. recurring configuration drift
- merchant reassurance vs. incomplete evidence
What is at stake
Pending states make a completed card payment look uncertain at the counter. Restoring the path protects merchant confidence immediately
Why SumUp
At SumUp, this often matters because a terminal checkout depends on several services completing in sequence.
Written for
This is the setup. The work is inside.
Running it puts you in the room: the full situation and its constraints, stakeholders who push back in their own words, and the decisions that are yours to make. What you produce becomes a Day One Plan — work you can show someone instead of describing.