What worked at 10 customers and broke at 100?
I’m looking for concrete examples rather than general scaling advice.
What process seemed completely manageable with your first 10 customers, but became painful or unreliable around 100?
Was it onboarding, support, billing, approvals, reporting, customer communication, or something you did not expect?
Looking back, what was the earliest signal that the process would not survive more volume?
And if you rebuilt it, what did you change first?