@Optimi Team - Thanks for writing to us on the community! This sounds like a Support related question. I’m going to escalate so that you may get the help you deserve. Stand by!

@Optimi Team - This is Chris from Zapier Support, just wanted to drop a line here for you and overall transparency as we’ve picked up Steph’s escalation within Support channels!

We believe you can Base64 within Code Mode since the Buffer is a standard Node module. What we are doing next is requesting that the dev either reach out to us in Zapier Support directly or we can loop them into the current conversation within Support to discuss the specific enquiry or issue they are having.

Have a great day!