- Create Yes/No Field called "Send Attachment" with a default "No"
- Create the Activity "Update Send Attachment Field" where we set the field value for Send Attachment to "Yes"
- Create Custom Action "Send Attachment" which will call activity "Update Send Attachment Field"
![](https://kb.kwizcom.com/hs-fs/hubfs/undefined-Apr-11-2023-05-40-28-7051-PM.png?width=654&height=345&name=undefined-Apr-11-2023-05-40-28-7051-PM.png)