curl --request POST \
  --url https://app.uplifthub.io/P195_Exposed_Integrations/rest/V1/LineItem \
  --header 'Content-Type: application/json' \
  --header 'X-apikey: <api-key>' \
  --data '
{
  "ExternalId": "",
  "LineItemName": "",
  "CampaignId": 1234567891234567,
  "ProductId": 1234567891234567,
  "StartDate": "2014-12-31",
  "EndDate": "2014-12-31",
  "Quantity": 0,
  "PartnerRate": 0.1,
  "FulfilmentCost": 0.1,
  "PartnerDiscount": 0,
  "LineItemReportingFields": [
    {
      "FieldName": "",
      "FieldValue": ""
    }
  ],
  "LineItemEvidence": [
    {
      "EvidenceFileName": "",
      "EvidenceURL": "",
      "EvidenceDescription": ""
    }
  ],
  "LineItemBriefFields": [
    {
      "FieldName": "",
      "FieldValue": ""
    }
  ],
  "EvidenceFilename_1": "",
  "EvidenceURL_1": "",
  "EvidenceFilename_2": "",
  "EvidenceURL_2": "",
  "EvidenceFilename_3": "",
  "EvidenceURL_3": "",
  "EvidenceFilename_4": "",
  "EvidenceURL_4": "",
  "EvidenceFilename_5": "",
  "EvidenceURL_5": "",
  "LineItemStatusId": 1234567891234567,
  "CostBasis_Override": ""
}
'

{
  "Success": false,
  "Message": "",
  "Id": 1234567891234567,
  "ExternalId": ""
}