{
 "PartnerName": null,
 "PartnerCurrencyCode": "UAD",
 "PricingConditions": [
  {
    "PricingConditionId": 659853,
    "ConditionTypeCode": "ABCD",
    "ConcessionItemTypeCode": "ABC",
    "PriceLevel": null
  }
],
"CurrencyMultiplier": 0
}

PartnerName  PartnerCode    PartnerCurrencyCode  PricingConditionId
NULL         NULL           UAD                   659853

SELECT * FROM OPENJSON(@json, '$')

SELECT *
FROM OPENJSON(@json)
WITH (PartnerName NVARCHAR(50) '$.PartnerName',
     PartnerCode nvarchar(50) '$.PartnerCode',
     PartnerCurrencyCode nvarchar(50) '$.PartnerCurrencyCode',
     PricingConditionId nvarchar(50)   '$.PricingConditions.PricingConditionId')

PartnerName  PartnerCode    PartnerCurrencyCode  PricingConditionId
NULL         NULL           UAD                  NULL