Setting entry level discount in Sales Order with API

Setting entry level discount in Sales Order with API


We want to create a Sales Order with discounts in some items. The main problem is we dont know how the API is working in this scenario. Reading the documentation we have to send the quantity discount in the JSON in discount_amount in the line item array and also send in the JSON the discount_type with the "entry_level" value. But for some reason this is not working

This is the JSON we are sending to Zoho Books
  1. {
    			"customer_id": 81921000029280354,
    			"line_items": [
    					"item_id": 81921000005503008,
    					"name": "Comida húmeda de ternera con arroz",
    					"quantity": 1,
    					"rate": 1.05,
    					"discount_amount": 0.00
    					"item_id": 81921000002789316,
    					"name": "Carpaccio de vacuno",
    					"quantity": 1,
    					"rate": 3.40,
    					"discount_amount": 5.00
    			"discount_type": "item_level"
When we send this JSON, the discount_ammount always appears with 0, but the Sales Order is created. What are we doing wrong?

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