While Knack enables us to change display date format we cannot send data via REST API in one fixed format. The POST and PUT methods should be deliberated from the UI data format and use only one format for all the date fields. It doesn’t make a sense to me to change the format on each field so the API is very fragile and requires permanent maintenance.
I wanted to use the “_raw” fields but support said to me that I should not use it as it is not designed for writing operations - just for reading data.
Knack - please let us use fixed formats for the field data types when accessing the database via REST API.