If a policy is not proving popular, it may be misunderstood rather than ill-conceived. So continual training and effective communication are vital. Posting regular information on the company intranet or shared message boards is recommended.
It will be easier to achieve compliance by using a single TMC, preferred suppliers and setting strict payment methods, appropriate classes of travel, rules on submitting receipts and expense reports, and clear hotel guidelines.
Your TMC should be able to advise on where the policy could be more effective, by analysing all management information (MI) reports.