How to Pass Output Variables from Flow to Einstein Bot in 'Set Additional Input Values'?

Question

I’m experiencing difficulties while configuring a Flow that triggers a bot via a messaging channel. The Flow in question is "Casos: Disparo de Pesquisa", which determines whether a satisfaction survey will be sent via email or WhatsApp. When the decision is WhatsApp, the Flow should trigger an Einstein Bot.

The problem occurs in the "Set Additional Input Values"

section when configuring the bot call.

Even though the output variables are correctly configured in the Flow (marked as

"Available for Output"), the option to search and select resources in the "Screen Pop Collection Variables" section does not allow me to insert any variables.

What I’ve Tried:

I created output variables in the Flow with different data types (Text, Date) and default values linked to the fields of the Case object:

var_CaseId (Text) – linked to $Record.Id
var_ContactId (Text) – linked to $Record.ContactId
var_Assunto (Text) – linked to $Record.Subject
var_CloseDate (Date) – linked to $Record.CloseDate

I confirmed that the variables are correctly marked as "Available for Output".

I also tried simplifying the API names of the variables to ensure compatibility.

I tested creating new variables and flows, but the issue persists.

Expected Result:

I would like to be able to add the output variables in the "Set Additional Input Values" section so that the bot can receive the necessary data (Case ID, Contact ID, Subject).