Beehiiv API connection - how to map "Custom Field : Name" & "Custom Fields Value"

I'm trying to pass data via api into Beehiiv.

I've made a video of the issue I'm having.
https://d.pr/v/CeBoMi

I have these custom fields in Beehiiv now.

cb_FORM_NAME,cio_segment_id,cio_campaign_id,customerio_segment,created_in_customerio,Last Name,First Name,signup_URL,due_date

Im getting an error "unprocessable_entity"

please help!

also wanted to add this. I'm getting data into Beehiiv, but he custom fields are not mapped correctly, some not passing, others mapped to the wrong labels.
https://d.pr/v/4GbpfD

also wanted to add this. I'm getting data into Beehiiv, but he custom fields are not mapped correctly, some not passing, others mapped to the wrong labels.
https://d.pr/v/4GbpfD

Hello @kurt,
First of check you are mapping all the fields correctly, I can see instead of date and time you are passing integer. So you need to convert date and time first in beehiiv format. And if you don't want to do that change all custom field with string data type. If you are still not able to solve this on your own feel free to DM me and we can do a free zoom call. FYI I'm not from Pabbly Connect team, just a freelancer who helps other Pabbly users.

I appreciate this, but at this moment I'm hoping to solve this and not require hiring a contractor. While the date time is in unicode and not parsed, its not the issue.