Delete SMS campaign

curl --request DELETE \
  --url https://api.nixflex.com/v1/sms/campaigns/{campaign_id}

DELETE

sms

campaigns

{campaign_id}

Delete SMS campaign

curl --request DELETE \
  --url https://api.nixflex.com/v1/sms/campaigns/{campaign_id}

Cancels a scheduled or running campaign. Already-sent messages cannot be recalled.

Request

curl -X DELETE https://api.nixflex.com/v1/sms/campaigns/smsc_a1b2c3d4 \
  -H "Authorization: Bearer KEY_ID:KEY_SECRET"

200 OK:

{
  "campaign_id": "smsc_a1b2c3d4",
  "deleted": true,
  "cancelled_count": 47
}

cancelled_count is the number of pending recipients that will not be messaged. Already-sent messages remain delivered.

Scheduled campaign: cancels before launch. Nothing is sent.
Running campaign: stops further sends. Already-queued messages may still go through (Twilio is faster than our cancel signal).
Done campaign: returns 400 — nothing to cancel.

Code	Cause
`campaign_not_found`	ID does not exist or is not yours
`campaign_already_done`	Already finished