Why did my subscriber count drop in Postscript?
The Postscript help pages give 4 common reasons. The first to rule out: Subscribers who text an opt-out keyword are unsubscribed automatically, so a campaign can be followed by a dip in the list.
Is it broken, or just quiet?
A number can fall because fewer people came, or because something stopped counting them. Below are the causes the Postscript help pages give, and how to check each one yourself.
What causes it?
Subscribers who text an opt-out keyword are unsubscribed automatically, so a campaign can be followed by a dip in the list.
In the Postscript help:
Postscript automatically unsubscribes those subscribers who text an opt-out keyword
How Postscript Protects Your Shop with Automatic Subscriber Removals, read 2026-11-12.Replies that are close to an opt-out word can count as an opt-out too, as Postscript explains.
In the Postscript help:
Postscript also identifies variations of opt-out language
How Postscript Protects Your Shop with Automatic Subscriber Removals, read 2026-11-12.Numbers that have been deactivated, for example after a plan ends or a number changes, are removed each day, so the count can fall with no change in your own marketing.
In the Postscript help:
Postscript will automatically remove deactivated numbers from your subscriber list on a daily basis.
How Postscript Protects Your Shop with Automatic Subscriber Removals, read 2026-11-12.Numbers that can never receive texts, such as landlines, can be taken off the list once a message fails for that reason.
In the Postscript help:
The device is incapable of receiving SMS messages (e.g., a landline).
How Postscript Protects Your Shop with Automatic Subscriber Removals, read 2026-11-12.
How do I check it myself?
Check the time period and filters on the subscriber graph before comparing two readings, since the graph follows both.
In the Postscript help:
the data displayed in the graph will depend on the time period and filters you've selected.
Guide to Subscriber Analytics, read 2026-11-12.When viewing a full month, include one extra day at the end of the date range, as Postscript's help advises.
In the Postscript help:
be sure to add an extra day on the tale end of the date range
Guide to Subscriber Analytics, read 2026-11-12.
How does Postscript work with Feder?
- Connect Postscript to Feder and it joins your Reach apps.
- When you connect Postscript, Feder checks the connection straight away and shows Connected only when that check passes. If a reading cannot be taken later, Feder shows it as not read, never as zero.
Some numbers are too quiet to judge daily, such as a form filled in a few times a week. Until there is enough of your own history to judge a change, Feder says it is still learning and scores nothing, rather than guessing.
See whether you can trust the numbers in Postscript, one of your Reach apps. Feder only reads. It never changes anything in Postscript.
What else goes wrong with these numbers?
- Why did fewer subscribers get my Postscript campaign than are on my list?Postscript
- Why did my Postscript texts arrive later than I scheduled?Postscript
- Why did Google Analytics stop collecting data?Google Analytics
- Why aren't my key events showing in Google Analytics?Google Analytics
- Why does Google Analytics show (not set)?Google Analytics
See every question.
Where do these answers come from?
Every cause and check on this page comes from the Postscript help pages, quoted above with the date we read them. Last reviewed 2026-11-12. We read them again by 2027-11-12. If one changes, this page changes or comes down.