Unfortunately the software is so bad and so complex that upon deployment, they realised they couldn't just roll this out for direct access to staff. It is full of travel-industry terminology nobody understands combined with corporate org policy terminology few understand.
So they designated specific staff as "travel managers" who would be the ones to book travel for their group. These people then get special training etc. In practices however none of the managers have time for this so we are all delegating it to admin staff that already do other admin type work for our teams.
And so the whole exercise has brought us full circle to where dedicated staff are effectively manually booking travel for us. And of course then COVID hit so nobody traveled for 2 years after that and we all prefer remote / zoom as much as possible anyway.