Hi ,
Thank you for reaching out here in the DocuSign Community.
The behavior you describe is managed by the "Attach documents to completion email." toggle under Settings> Signing Settings.
In the case that you have already enabled the setting but you can't get the completed document to be attached to your emails, it is important to note that there are certain scenarios in which the document will not be included, the most common being that the final version of the document is exceeding our 5 MB attachment limit
For more details on this and any other exceptions, please check the guide provided below:
https://support.docusign.com/s/articles/Why-are-documents-not-attached-to-the-Completed-email-notification?language=en_US&rsc_301
Remember that you are always welcome to create a case and have a Support Expert take a closer look at your setup.
https://support.docusign.com/en/contactSupport
If you are not able to open the case on the same page, you should scroll down to More Support Options and select "I can't reset my password or don't have an account." you will have the option of filling out the form or calling Support.
Best regards,
Alejandro R.
Community Moderator.