PUT api/MKTH/SettingPromotion/UpdatePromotion/{promotion_id}

{
  "promotion_name": "sample string 1",
  "start_date": "sample string 2",
  "to_date": "sample string 3",
  "condition": "sample string 4",
  "buy": 1,
  "get_free": 1,
  "discount": 1.1,
  "cash": 1.1,
  "groups": [
    {
      "cust_group_id": 1,
      "cust_group_name": "sample string 2"
    },
    {
      "cust_group_id": 1,
      "cust_group_name": "sample string 2"
    }
  ],
  "models": [
    "sample string 1",
    "sample string 2"
  ]
}

<m_Promotion_MKTH xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/MRP.Domain.Models.MKTH">
  <buy>1</buy>
  <cash>1.1</cash>
  <condition>sample string 4</condition>
  <discount>1.1</discount>
  <get_free>1</get_free>
  <groups>
    <m_customer_group>
      <cust_group_id>1</cust_group_id>
      <cust_group_name>sample string 2</cust_group_name>
    </m_customer_group>
    <m_customer_group>
      <cust_group_id>1</cust_group_id>
      <cust_group_name>sample string 2</cust_group_name>
    </m_customer_group>
  </groups>
  <models xmlns:d2p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
    <d2p1:string>sample string 1</d2p1:string>
    <d2p1:string>sample string 2</d2p1:string>
  </models>
  <promotion_name>sample string 1</promotion_name>
  <start_date>sample string 2</start_date>
  <to_date>sample string 3</to_date>
</m_Promotion_MKTH>

Sample not available.