Can you provide an example of a common JSON structure validation error and how to fix it?

A common error is providing a string where a numeric value is expected (e.g., sending a string for `Amount` when the API requires a number). To fix this, ensure you convert the data type before constructing the JSON. For example, in Python, use `float()` or `int()` to convert string values to the appropriate numeric type. Similarly, check for missing required fields and add them with valid values.