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Explain why a booking is blocked without a second source of truth

You’re the software engineer. Your team is in the room. Printed Oct 17, 2026.

Policy decisions are enforceable only when travelers and administrators can trace the reason behind them.

The policy engine protects spend controls while the booking flow needs an explanation people can act on.

Who you’d be doing this for

“My travelers send screenshots all day asking what rule actually sent them to approval.”

Ikenna Babajide · Corporate Travel Manager

She administers country-specific hotel and flight policies for a large managed travel program.

What is at stake

Travelers receive a policy result without seeing whether price, group, or trip context caused it. You must weigh a useful explanation against preserving the policy engine as the single source of truth.

Why it isn’t already fixed

Every obvious fix costs something else. That’s the part you’d have to decide.

  • policy transparency vs. permission boundaries
  • traveler self-service vs. booking simplicity
  • stable decision logic vs. richer portal context
  • pilot speed vs. durable shared contracts

Why Navan

Travel policies, approval workflows, user roles, and administrator portals meet in the same managed travel program.

Written with these in mind

product-minded backend engineerfull-stack systems engineerfrontend engineer focused on complex workflows

Not your kind of problem? 54 more at Navan, or browse every organization.

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.