All reimbursements for travel and other expenses will be made via the Accounts Payable Module, which means that a payment cannot be made to an individual unless they are on the "suppliers" list. Please follow the steps as described in the new supplier set-up procedures [1].
See Chapter 5b: Expenses & Benefits [2] for details of the University's Expenses policy. Expenses Claim form and guidance on claim guidelines [3] can be found on the Finance Division website.
Links
[1] https://www.finance.admin.cam.ac.uk/policy-and-procedures/financial-procedures/chapter-6-non-pay-expenditure/suppliers/new-supplier
[2] https://www.finance.admin.cam.ac.uk/policy-and-procedures/financial-procedures/chapter-5b-expenses-and-benefits
[3] https://www.finance.admin.cam.ac.uk/finance-staff/accounts-payable/expense-claims/expense-forms