When you attempt a API call/request, there is a possibility that you will receive an error of API_VALIDATION_ERROR as demonstrated here:

This is commonly caused by invalid parameters on the request/call that you done. For example, missing a quotation mark (") or missing or wrong spacing.

For this, we recommend you to refer to our API request/call format based on your product in our API reference here

Please make sure that you have the appropriate text, quotation mark, and spacing for the parameters. We also recommend you to use Postman as the specific error that you need to fix is also displayed in the response paramaters