Can JSONObject be a Prompt Definition input?

I want a JSONObject data item type to be an input to a prompt definition. I have added an associated field to the underlying table as a work field, but when I try and select that field on the Input Definitions subtable, it seems to be getting filtered out.

If I try to add a Object data item type, this error gets thrown on save, which calls out that JsonObject is a valid input type

Error - Invalid input field. Allowed data item types are [Color, Date, DateTime, Email, Id, JsonArray, JsonObject, Number, Phone, SchemaList, Schema Lookup, Text, TextArea, TextEditor, Time, TrueFalse], but data item nsPTestJSON has type Object.

We’ve used JSON Object in the Output Definition of a Prompt with success. I wonder if you could use text type as the input or if you are too limited in size.

There is also a difference between a field of type Object and type JSON Object. Your original post was a little confusing which you are truly using

I think the reason I couldn’t see the JSONObject I’d added to the underlying table may have been due to a caching issue. I can see it now and am able to successfully reference it as an Input Definition. Thanks!