Hey, @The_Shermanati
I’d start with double-checking your Association Type Ids. You can find the full list here. Looking at your example, you listed `280` for Note > Deal, but `280` is for Company to contact (all labels). You can find the full list here — Association type ID values.
Note > Deal = 214
Deal > Note = 213
You can test this using Postman pretty quick to verify your association IDs are working as expected.
Have fun testing! — Jaycee