Error on my zap: Halted exception field "Emailblacklisted". Why???!!! Help!
hi!
I had a zap that put the contact into my mail list ..
Didn’t work and ‘stopped’ this task. Why????
This is the error:
This Brevo (4.2.0) step hit an error
Halted Exception: Field "emailBlacklisted" is invalid - it is not Boolean value and can not be converted to Boolean value.
Please help me.
This is a horrible errror. REason is that this zap task was to add Webinar registrant contacts into my mail list which would then get a notification from me for the Zoom Webinar link!!! Of which they didnt get and so didnt get to watch the Live webinar (of which they paid!!)aaaargh. Tragic.
Also, post screenshots showing how your Zap step is configured in EDIT mode with the field mappings visible so we can see the field types.
CONTEXT about the error from AI
Tuesday, July 1, 2025 at 7:49 AM PT
Error Explanation
The error message:
"Halted Exception: Field emailBlacklisted is invalid - it is not Boolean value and can not be converted to Boolean value."
means that the emailBlacklisted field in your Brevo (formerly Sendinblue) step is expecting a Boolean value — either true or false — but something else was passed in (like a string, number, or empty/null value).
Likely Causes:
You're sending "false" (a string) instead of false (a Boolean).
You're passing a blank value or a value like "0", "no", or "null" that can't be coerced into a proper Boolean.
A mapped field from a previous step contains unexpected data.
How to Fix:
If using a static value, set:
"emailBlacklisted": false
(or true if appropriate)
If mapping a value from a previous step, use a Code step before to convert the value:
let raw = inputData.emailBlacklisted; let emailBlacklisted = raw === 'true' || raw === true;
return { emailBlacklisted };
Double-check the input field in your Zap or automation step to ensure it's explicitly set to a Boolean value, not a string.
This post has been edited by a moderator to remove personal information. Please remember that this is a public forum and to remove any sensitive information prior to posting.
HI Troy!
Here is one of the contacts that was ‘halted”. There was a second one too.
The DATA IN:
item_id
1
3245330
The DATA OUT:
ID
92924512
Created At
2025-06-17T12:48:15.376Z
User Id
225432149
User Email
usersemailaddress@gmail.com
User Full Name
Gail Txxxx
Product Name
Why Do We Do That.
Amount Dollars
84
Amount Cents
8400
Subscription
false
Coupon Code
Affiliate Referral Code
User First Name
Gail
User Last Name
Txxxxx
Order Number
ORD001144
Product Id
3245330
Items
1
product_name
Why Do We Do That
product_id
3245330
amount_dollars
84
amount_cents
8400
Hi Troy,
could you please clarify how to fix?
Do I do this in Brevo?
Or, Zapier?
Not sure...
@curlz
For us to have more info, post screenshots showing how your Brevo Zap step is configured in EDIT mode with the field mappings visible so we can see the field types.
Hi Troy,
Sure!
Firstly, I can now see that there have been many ‘halt’ errors!!! I have just noticed this - so, there are many zap tasks that have not gone through.
The screenshots shows just one of them for “Webinar Full Enrol” zap task. (Though this “halt” error also is for “New Leads” and “New Free Report”. )
I hope I’ve supplied the right data you need to troubleshoot this!
Thanks,
Jenny
@curlz
From the error message, the issue seems to be related to this field: Email Blacklisted
Click the field label to see a tooltip with more info.
It may be be that the value is being treated as a text string “true”/”false”, instead of a boolean value as true/false.
Or it may be due to capitalization, etc.
That may be a bug with the backend integration.
You can try using the ...] button for the field to switch to “Custom” mode, and set this value: false
You can try opening a ticket with Zapier Support for them to investigate and advise further: https://zapier.com/app/get-help
