Buiderall mapping issue

Hello,
I have everything working, however, I can not seem to send the first name to my mailingboss list. All other fields transfer correctly, I have a first name field and have double checked that all labels match. Perhaps someone can help ?

Sorry for all the inconiveince. We have a made a new action event named as "Add Lead in List with Custom Fields" as shown below. Please use it and let us know if the issue still persists.

I am trying this, however, there is no field for first name nor any ability to add that field using the option above.

Please map the First name and Last name, in the Name field itself and test it.

This is working correctly. The Response Received doesn't show that the First Name was inserted, however it actually was. Thank you so much!

This is working correctly. The Response Received doesn't show that the First Name was inserted, however it actually was. Thank you so much!