Ordering proxies for a TCR campaign requires several steps and may take some time, all orders are processed in the background.

An attempt to find available numbers for given area code is made
If no numbers are available, the process stops and notifies about failure (TBD)
If all or some number of proxies are purchased all are submitted to providers for TCR pairing
The TCR campaign ok status becomes PENDING due to paring in progress, still can send using existing proxies
Once DCA confirmed the campaign status is set to ACTIVE again but some proxies can still be in pending mode
Use referenceId in /api/proxy/select to check the status of new proxies, be advised that searching proxies by reference id may return no proxies just after ordering, there is a delay when new proxies appear in search results
Only proxies with status ok can be used for sending

Success:

200: OK. Order has been submitted. Returns an object with referenceId which can be used to track proxies status.

Errors:

401: Unauthorized. The credentials are either missing o rare incorrect. Verify the credentials are present and are correct.
403: Forbidden. Not authorized to access endpoint.