Postscript icon

Postscript

SMS marketing automation for ecommerce brands on Shopify.

1 trigger4 searches4 actionsInstant (webhooks)Auth: API key

AI-assisted documentation6 min read

This documentation is compiled from our integration source code, internal specs for Postscript, its official API documentation and anonymized requests logs we collect from our support team[2].

Open Postscript on WEXTL →

Connecting Postscript takes an active account plus an API access token from your account settings — no other setup is required.[3]

  1. Log in to your WEXTL account, add the Postscript node module to your workflow, and click Create new credential.
    Instant triggers use webhooks — click Create a webhook first when adding one, then create the credential.
  2. Optional: In the Credential name field, enter a name for the credential.
  3. Enter the authentication credentials you copied from your Postscript account, or follow the on-screen instructions to create the credential.
  4. If prompted, authenticate your account and confirm access.
  5. If you want to make changes to your credential in the future, follow the steps in Manage credentials →

Notes

Credentials are org-scoped; share them with teammates from the Credentials picker on any of its nodes.For detailed information on connecting an application, see Connect an application →

Watch EventsTrigger
Output fields[3]
FieldType
Webhook IDtext
Resource Typetext
Resource IDtext
Event Timetext
Eventtext
Event Dataobject
IDtext
Subscriber IDtext
Shop IDtext
Is Opt Outboolean
Shopify Customer IDtext
From Numbertext
Created atdate
Bodytext
Get a MessageAction
Input fields[3]
FieldType
Message IDRequired
text
Output fields[3]
FieldType
Bodytext
Created atdate
Credits Usednumber
IDtext
Media URLurl
Phonetext
Shop IDtext
Subscriber IDtext
Get a Message RequestAction
Input fields[3]
FieldType
Message Request IDRequired
text
Output fields[3]
FieldType
Bodytext
Categorytext
Created atdate
IDtext
Phonetext
Scheduled atdate
Sent Messageobject
Bodytext
Created atdate
Credits Usednumber
IDtext
Media URLurl
Phonetext
Shop IDtext
Subscriber IDtext
Statustext
Status Codenumber
Subscriber IDtext
Updated atdate
Get a SubscriberAction
Input fields[3]
FieldType
Subscriber IDRequired
choice
Output fields[3]
FieldType
Created atdate
Dataobject
Emailemail
IDtext
Phone Numbertext
Propertiesobject
Has Purchasedboolean
Days Since Purchasenumber
Categoriesarray
Birthdaytext
Shopify Customer IDnumber
Subscriptionsobject
Promotionalobject
Transactionalobject
Tagsarray
Updated atdate
Search SubscribersSearch
Input fields[3]
FieldType
Created At (Equal To)date
Created At (Greater Than)date
Created At (Greater Than or Equal To)date
Created At (Less Than)date
Created At (Less Than or Equal To)date
Email (Contains)text
Email (Equal To)text
Email (In List)array
Page Numbernumber
Phone Number (Contains)text
Phone Number (Equal To)text
Phone Number (In List)array
Shopify Customer ID (Contains)text
Shopify Customer ID (Equal To)text
Shopify Customer ID (In List)array
Sorting Ordertext
Updated At (Equal To)date
Updated At (Greater Than)date
Updated At (Greater Than or Equal To)date
Updated At (Less Than)date
2other input fields
Output fields[3]
FieldType
Created atdate
Dataobject
Emailemail
IDtext
Phone Numbertext
Propertiesobject
Has Purchasedboolean
Days Since Purchasenumber
Categoriesarray
Birthdaytext
Shopify Customer IDnumber
Subscriptionsobject
Promotionalobject
Transactionalobject
Tagsarray
Updated atdate
Create a SubscriberAction
Input fields[3]
FieldType
Keyword IDRequired
text
KeywordRequired
text
Phone NumberRequired
text
Originchoice
Shopify Customer IDnumber
Emailemail
Tagsarray
Specify Additional Params bychoice
Output fields[3]
FieldType
Created atdate
Dataobject
Emailemail
IDtext
Phone Numbertext
Propertiesobject
Has Purchasedboolean
Days Since Purchasenumber
Categoriesarray
Birthdaytext
Shopify Customer IDnumber
Subscriptionsobject
Promotionalobject
Transactionalobject
Tagsarray
Updated atdate
Make an API Calluniversal
Input fields[3]
FieldType
URLRequired
text
MethodRequired
choice
Headersarray
Headerobject
Query Stringarray
Parameterobject
Bodytext
Output fields[3]
FieldType
Bodytext
Headersobject
Status codenumber
Send a MessageAction
Input fields[3]
FieldType
Message BodyRequired
text
Subscriber IDchoice
Phonetext
Countrytext
Categorychoice
Scheduled atdate
Media URLurl
Output fields[3]
FieldType
Bodytext
Categorytext
Created atdate
IDtext
Phonetext
Scheduled atdate
Sent Messageobject
Bodytext
Created atdate
Credits Usednumber
IDtext
Media URLurl
Phonetext
Shop IDtext
Subscriber IDtext
Statustext
Status Codenumber
Subscriber IDtext
Updated atdate
Update a SubscriberAction
Input fields[3]
FieldType
Subscriber IDRequired
choice
Emailemail
Tagsarray
Specify Additional Params bychoice
Output fields[3]
FieldType
Created atdate
Dataobject
Emailemail
IDtext
Phone Numbertext
Propertiesobject
Has Purchasedboolean
Days Since Purchasenumber
Categoriesarray
Birthdaytext
Shopify Customer IDnumber
Subscriptionsobject
Promotionalobject
Transactionalobject
Tagsarray
Updated atdate

Look for Postscript templates in the WEXTL template library.

Browse templates →
  1. WEXTL® Postscript Source Code connector implementation.
  2. Our users use cases and automations.
  3. Official API Documentation for Postscript.
  4. WEXTL® visual workflow builder data.

Last updated: Jul 24, 2026 18:12