Expose the new Expense feature via the API
Xero previously had an Expense Claims public API available (https://api.xero.com/api.xro/2.0/ExpenseClaims)
However since 2018, a new Xero Expense product has replaced Expense Claims and any new organisation is forced on the new expense product. This new expense product currently has no available API.
This is a regression as the previous API allowed developers to build integration with the Xero's expense features, however it is now not possible anymore.
There is an existing trello card for this feature however I do not understand why it is still in the "nice to have" column although the number of votes is higher than other cards in the pipeline.
If this feature interests you, please vote on this idea.
Keertika Chandola commented
If you're planning on building a new expenses integration we suggest you create ACCPAY Invoices (bills) in Xero. More information here https://developer.xero.com/documentation/api/accounting/invoices