Use Tag Manager and put in the UET Tag (all pages) then the transaction event with the revenue data layer variable.
Example of a Bing transaction Event:
`<script>`
`window.uetq = window.uetq || [];`
`window.uetq.push(‘event’, ‘Success’, {‘event_category’: ‘Transaction’, ‘revenue_value’: ‘{{Transaction Revenue}}’, ‘currency’: ‘{{currency}’);`
`</script>`
Where Transaction Revenue and currency are data layer variables. Then on Bing Ads you can configure the transaction event.