'content' is a required property but is missing from the input.

To fix the 400 status error in the Azure OpenAI API due to the message "'content' is a required property - 'messages.0'," you need to ensure the request body is correctly formatted. Here are the steps to resolve the issue:

• Verify that the content field is present and correctly set for each message in the messages array.

• Ensure the content field is of the correct type, typically a string.

• Check that all required properties, including content, are included in the request body.

Here are some key actions:

• Review the request body for missing or incorrectly formatted fields.

• Confirm the data types of all fields match the API's expectations.

• Update the request to include the necessary content field for each message.