Build a Postscript win-back SMS campaign

1. In the dashboard, open Messaging > Segments > Create Segment and name the segment.
2. Add the criteria Postscript's win-back guide lists: Number of Orders equals 0 OR Last Order Date before last 365 days, Subscriber Has Clicked not equal to TRUE, Subscriber Created Date before last 180 days, and Number of Replies equals 0. Click Save Segment.
3. Open Messaging > Flow Builder > Create Flow > Campaign > Create a new campaign, name it, pick the segment under Includes and click Save.
4. Drag in a Send Message block and write the text. Add a Subscriber Event Split with a Send Message block per branch, and optionally an Update Subscriber block to tag each branch.
5. Click Save Changes, then schedule the campaign or activate it right away.

Build a win-back campaign for subscribers who never ordered, never clicked and never replied, opted in over 180 days ago. Save it as a draft, send me a preview and wait for my OK before scheduling.

1. 01

   Look for the segment first

   Your agent reads Messaging > Segments with list_segments and searches the name. If an unengaged segment already exists, it reuses it and reports its Segment Size, so a second copy never piles up.

2. 02

   Save the four criteria

   create_segment gets the criteria from your prompt, each joined with and or or. include_phone_only stays off, because Postscript says purchase filters do not apply to phone-only subscribers. The agent reads the Segment Size back and stops if it is 0.

3. 03

   Save the campaign as a draft

   create_campaign puts the segment under Include, turns on "exclude customers messaged in the last 16 hours" and sets Order Created as the cancellation trigger, so buyers leave the flow. It saves the first Send Message block and sends nothing. The Subscriber Event Split and its branch replies you add in Flow Builder.

4. 04

   Preview on a real phone

   send_preview texts the message to the number you name. It waits for your OK, since it reaches a phone.

5. 05

   Schedule it for the subscribers' hours

   schedule_campaign runs only after you approve it. The agent asks for a date and time, and sets use_subscriber_time_zone so each region gets the message at the same local time.

Segment "Unengaged 180 days": 3,412 subscribers (new)
Draft "Win-back, quiet subscribers" saved, includes the segment, excludes customers messaged in the last 16 hours
Preview sent to +1 555 0100
Scheduled for Oct 28, 11:00 in each subscriber's time zone, after your OK

curl -X POST https://cotlet.dev/api/v1/postscript/segments \
  -H "Authorization: Bearer $COTLET_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name":"Unengaged 180 days","include_phone_only":false,"criteria":[{"criterion":"Number of Orders","parameter":"equals","value":"0"},{"join":"or","criterion":"Last Order Date","parameter":"before last","value":"365 days"},{"join":"and","criterion":"Subscriber Has Clicked","parameter":"not equal to","value":"TRUE"},{"join":"and","criterion":"Subscriber Created Date","parameter":"before last","value":"180 days"},{"join":"and","criterion":"Number of Replies","parameter":"equals","value":"0"}]}'

{
  "segment_id": "60418",
  "name": "Unengaged 180 days",
  "size": 3412,
  "include_phone_only": false
}

MCP: add https://cotlet.dev/mcp/v1 with the same key; the call is postscript_write → create_segment. Example data.

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