The content in the Braze preview doesn't match the live deployment.

Question

In my mail template, I’m using a for loop to reference Content Block A, which in turn references Content Block B. Together, Content Blocks A and B are supposed to render different items dynamically based on each iteration of the for loop.

In the email preview mode, everything works as expected. However, after launching the campaign, the actual sent emails display the exact same content for every single iteration of the for loop.

Is this by design (a platform limitation/mechanism), or is it a bug? Even if it's by design, the fact that the preview content differs from the actual sent content is very confusing—it makes it hard to trust the preview at all.

On top of that, when performing a Canvas test send, the context object content fails to render completely in the delivered email.

Does anyone have any insights or ideas on what might be causing this?

ryuu · Answer

Got it! Thanks again for the help.

Manoj__ · Answer

Yes, you will have to manually input the values for context variables. In preview mode, Messages cannot retrieve the values from the context step.

ryuu · Answer

Hi, @Nirnay  Thank you for the reply.

In my Canvas, I defined several context variables. When I select an existing user for the Preview Canvas as a User, these context values can be retrieved normally.

However, when I do a test send—even with the  "Override recipients attributes with current preview user's attributes"  option checked—these context values still fail to render in the delivered email. On the other hand, the existing user's standard custom attributes render without any issues.

Apologies, but I'm still a bit unclear about your explanation regarding context. Should I understand it this way: even after selecting an existing user for a Canvas test send, I still need to manually assign values to the context variables (like the test context variable shown in the screenshot) for them to actually render in the email?