Invalid schema for function 'guidance_web_qna': One or more parameters are not of the expected type 'object' or 'boolean'. Please check the types for 'query_item', 'answer', and 'query_variations'.

The 400 status error you are encountering in the Azure OpenAI API, specifically the "Invalid schema for function 'guidance_web_qna'" error, is due to a mismatch between the data types and structure of the request payload and the expected schema defined by the API.

Here are the key reasons:

• Data Type Mismatch: The error indicates that the provided data for parameters such as query_item, answer, and query_variations do not match the expected data types. For example, the query_item and answer fields are expected to be strings, and query_variations is expected to be an array, but the actual data types in your request do not align with these expectations.

• Invalid Structure: The error message suggests that the structure of the request payload does not conform to the expected JSON schema. This could be due to missing or additional fields, or incorrect nesting of the data.

This discrepancy between the actual request payload and the API's expected schema results in the server unable to process the request, hence the "Bad Request" status code 400.