Sending invoice reminders via SMS from Zoho Books

send_sms_from_zoho_books.ds

organizationID = organization.get("organization_id");
payment_link_payload = Map();
payment_link_payload.put("customer_id",invoice.get("customer_id"));
payment_link_payload.put("payment_amount",invoice.get("total"));
payment_link_payload.put("description",invoice.get("invoice_number"));
payment_link_payload.put("expiry_time",invoice.get("due_date").toDate().addDay(90));
JSONString = Map();
JSONString.put("JSONString",payment_link_payload);
result = invokeurl
[
	url :"https://books.zoho.com/api/v3/paymentlinks?organization_id=" + organizationID
	type :POST
	parameters:JSONString
	connection:"booksdeluge"
];
payment_link = result.get("payment_link").toMap().get("url");
info payment_link;
customer = zoho.books.getRecordsByID("Contacts",organizationID,invoice.get("customer_id"),"booksdeluge");
contact_id = customer.get("contact").get("zcrm_contact_id");
matching_contact = zoho.crm.getRecordById("Contacts",contact_id);
org_name = organization.get("name");
invoice_amount = invoice.get("balance_formatted");
invoice_number = invoice.get("invoice_number");
due_date = invoice.get("due_date_formatted");
message_name = "Invoice reminder SMS for " + matching_contact.get("First_Name") + " " + matching_contact.get("Last_Name");
message_to_send = "Hi " + matching_contact.get("First_Name") + ", gentle reminder that your invoice " + invoice_number + " from " + org_name + " for " + invoice_amount + " is due on " + due_date + ". Here is a link to pay: " + payment_link;
from_number = null;
//"+12321412421"; // choose from number 
new_sms_record_resp = zoho.crm.createRecord("twiliosmsextension0__Sent_SMS",{"Name":message_name,"ContactName":matching_contact.get("id"),"Message":message_to_send,"From":from_number,"To":matching_contact.get("Mobile")},{"trigger":{"workflow"}});