It is a very common business requirement that an email is required to be sent to multiple people from a particular SharePoint Group for notification or something. However, by default, SPD will only send an email to the first member of the list and it will ignore for the rest.
Please follow this configuration for fixing this problem:
1. Assume you have a SharePoint Group called “Approver”.
2. Go to “Group Setting” of the group, under the section “Group Settings”.
- Make sure Everyone can view the membership of the group
- Make sure Group Members can edit the membership of the group too.
3. Go to “Site Permissions”, make sure to ONLY give the group for Read Only access.
4. In SharePoint Designer, add an action “Send email”. Choose the column which represents your share point group. And make sure the return value is “Display name”. Otherwise, it won’t send email.
PS. For testing, please ensure to use different accounts with different email addresses. If all accounts are using the same email address, this workflow will only send one email to the same address as they automatically merge.
Now, the workflow should be able to send emails to multiple people from the group.