Hello @shercal
Thanks for reaching out today.
I’d like to inform that we only allow single attachments to be included in email templates/campaigns.
You’re able to read this on our documentation under “Advanced Options” here: https://help.sendinblue.com/hc/en-us/articles/209587285–Creating-an-email-campaign
The reason for this is that it creates larger emails, which are not always supported by email systems. We only allow one attachment to limit the total size of the email since the maximum total size of your newsletter must be less than 5 MB.
With that being said, your feedback and code suggestions have been forwarded to our technical team for future consideration.
Hope this clarifies. Please let us know if you have any questions or concerns
Best Regards,