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    purchaseTotals_exchangeRateTimeStamp
    The time stamp returned by a Dynamic Currency Conversion provider when a conversion request is made. This value
				is set to GMT.
Specifications
			- Data Type:String
- Data Length:14
- Data Format:yyyyMMDDhhmmss
Mapping Information
			- REST API Field:orderInformation.amountDetails.exchangeRateTimeStamp
- SCMP API Field:exchange_rate_timestamp
- Simple Order API Field:purchaseTotals_exchangeRateTimeStamp