POST api/Customer/PostAttachments

{
  "ar_id": 1,
  "account_name": "sample string 1",
  "account_key": "sample string 2",
  "account_container": "sample string 3",
  "ARAttachment": [
    {
      "gat_id": 1,
      "gat_ath_name": "sample string 1",
      "gat_file_name": "sample string 2",
      "gat_base64": "sample string 3",
      "gat_details": "sample string 4",
      "gat_user_id": 1,
      "gat_user_code": "sample string 5",
      "gat_created_on": "2025-12-06T04:24:45.0752841+00:00",
      "gat_cp_id": 1,
      "gat_cp_code": "sample string 6"
    },
    {
      "gat_id": 1,
      "gat_ath_name": "sample string 1",
      "gat_file_name": "sample string 2",
      "gat_base64": "sample string 3",
      "gat_details": "sample string 4",
      "gat_user_id": 1,
      "gat_user_code": "sample string 5",
      "gat_created_on": "2025-12-06T04:24:45.0752841+00:00",
      "gat_cp_id": 1,
      "gat_cp_code": "sample string 6"
    }
  ]
}

<ARPostAttachments xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/ZealitAPI.Models">
  <ARAttachment>
    <ARAttachment>
      <gat_ath_name>sample string 1</gat_ath_name>
      <gat_base64>sample string 3</gat_base64>
      <gat_cp_code>sample string 6</gat_cp_code>
      <gat_cp_id>1</gat_cp_id>
      <gat_created_on>2025-12-06T04:24:45.0752841+00:00</gat_created_on>
      <gat_details>sample string 4</gat_details>
      <gat_file_name>sample string 2</gat_file_name>
      <gat_id>1</gat_id>
      <gat_user_code>sample string 5</gat_user_code>
      <gat_user_id>1</gat_user_id>
    </ARAttachment>
    <ARAttachment>
      <gat_ath_name>sample string 1</gat_ath_name>
      <gat_base64>sample string 3</gat_base64>
      <gat_cp_code>sample string 6</gat_cp_code>
      <gat_cp_id>1</gat_cp_id>
      <gat_created_on>2025-12-06T04:24:45.0752841+00:00</gat_created_on>
      <gat_details>sample string 4</gat_details>
      <gat_file_name>sample string 2</gat_file_name>
      <gat_id>1</gat_id>
      <gat_user_code>sample string 5</gat_user_code>
      <gat_user_id>1</gat_user_id>
    </ARAttachment>
  </ARAttachment>
  <account_container>sample string 3</account_container>
  <account_key>sample string 2</account_key>
  <account_name>sample string 1</account_name>
  <ar_id>1</ar_id>
</ARPostAttachments>

Sample not available.