Unable to process your request on Send document for signature API

Unable to process your request on Send document for signature API

I'm trying to send document for signature using API

here's the json data that i send for the request :

{
  • requests: {
    • actions: [
      • {
        • verify_recipient: false,
        • action_type: "SIGN",
        • private_notes: "Please get back to us for further queries",
        • signing_order: 0,
        • fields: [
          • {
            • field_type_name: "Email",
            • field_category: "textfield",
            • field_label: "Email",
            • is_mandatory: true,
            • page_no: 0,
            • field_name: "Email",
            • document_id: "228782000000013001",
            • description_tooltip: "",
            • y_coord: 3,
            • abs_width: 30,
            • x_coord: 4,
            • abs_height: 2
            },
          • {
            • field_type_name: "Signature",
            • field_category: "image",
            • field_label: "Initial",
            • is_mandatory: true,
            • page_no: 0,
            • field_name: "Initial",
            • document_id: "228782000000013001",
            • description_tooltip: "",
            • y_coord: 3,
            • abs_width: 22,
            • x_coord: 42,
            • abs_height: 2
            },
          • {
            • field_type_name: "Initial",
            • field_category: "image",
            • field_label: "Initial",
            • is_mandatory: true,
            • page_no: 0,
            • field_name: "Initial",
            • document_id: "228782000000013001",
            • description_tooltip: "",
            • y_coord: 3,
            • abs_width: 18,
            • x_coord: 71,
            • abs_height: 5
            }
          ],
        • recipient_phonenumber: "",
        • recipient_countrycode: "",
        • deleted_fields: ""
        }
      ],
    • deleted_actions: [ ],
    • request_name: "Leave a note test"
    }
}


However, the API always return the error message :


{
    "code": 9039,
    "message": "Unable to process your request",
    "status": "failure"
}



I don't know which part of my request is wrong, can you help us on this case?
i use a simple PHP CURL code to perform this request, and i only get this error when using the Send document for signature API method. I try with Get document list method and it's working well.

Thank you.