I am building a SMS extension app for workflow when customer add a step to send a SMS ,the custom UI will get open where he add the number to which he wants to send SMS and the message body? as well as I want to fetch the contacts from the DB which already present in my DB to show him in a dropdown options for sending message?
Custom UI Integration in Extension App?

Best answer by Parsa.Pezeshki
Hi Kavya, thanks for your message. I’m on the Product team for extensions. Which extension contract are you using or planning on using? Here’s the list of the contracts currently published: https://developers.docusign.com/extension-apps/extension-app-reference/extension-contracts/
If I understand your use case (get contact information, select a phone number, then send an SMS message to that number within a Maestro workflow), we don’t have an extension type purpose-built for it, but you *might* be able to creatively make it work with Data IO. Any details on the business use case / customer need would be great to see as well.
Reply
Sign up
Already have an account? Login
You can login or register as either a Docusign customer or developer. If you don’t already have a Docusign customer or developer account, you can create one for free when registering.
Customer Login/Registration Developer Login/RegistrationJoin the Docusign Community by logging in with your Docusign developer or customer account credentials.
Don’t have an account? You can create a free one when registering.
Note: Partner-specific logins are not available yet. Partners should log in as either a customer or developer
Docusign Community
You can login or register as either a Docusign customer or developer. If you don’t already have a Docusign customer or developer account, you can create one for free when registering.
Customer Login/Registration Developer Login/RegistrationEnter your E-mail address. We'll send you an e-mail with instructions to reset your password.