How can I bypass Marketo Durable Unsubscribe?
Hello Community,
We are setting up a process to bypass Marketo's Durable Unsubscribe.
This is how the process works. Anyone who opts out of email using the below methods in the Smart List will go through the Flow Steps below:

Here we will set the Brand Unsubscribe field to TRUE (first step is for those who fill out one of our forms and second step is for everyone else). We will then wait 2 minutes (I tested it and it seems a wait step is needed to allow for Marketo processing time before Flow Step 4), then in Flow Step 4 we will change the Unsubscribed field to FALSE. This will affect all brands that someone is subscribed to with the same email address. Steps 5 and 6 are additional backend maintenance we do ourselves.

One of the outliers we have is we set up a process for one of our brands to enable them to opt-into email on a website by checking a box. The opt-in syncs to Marketo and the "(Name of Brand)-Marketing Opt-In" box is set to TRUE.
Our problem is that I've noticed a lot of these members who are opting in via this process were previously unsubscribed by Marketo's durable unsubscribe--so they cannot receive emails due to Unsubscribed being checked.
I want to set up a process that when someone is opted into marketing via the Marketing Opt-In checkbox AND they previously had durable unsubscribe box checked, that box will be unchecked. HOWEVER, my concern is what to do about the duplicate account that they originally did opt out of? Because, when we change Unsubscribed to FALSE, Marketo will automatically update those other duplicates accounts and also set them to FALSE.
Does anyone have any suggestions? I was thinking we could possibly use an API to update the duplicate brand and set the Brand Unsubscribed field to TRUE but can't determine how to configure this API call. I've been testing using Postman.
Another idea is to use another trigger campaign to set the Brand Unsubscribed to TRUE as soon as the Durable Unsubscribe is updated using the criteria and flow steps below:


I think this could work but am not 100% positive. Has anyone ever built something like this and/or have any suggestions?
Thank you,
LK