HomeExemption Certificate ManagementExemption Certificate ManagementOverviewAPIMCPIntegration guidesECM (AvaTax) APICertCapture RESTful APIsModelsTransactionLineParameterModelRepresents a transaction parameter.ParametersnameOptionalstringThe name of the parameter.valueOptionalstringThe value of the parameter.unitOptionalstringThe unit of measure of the parameter value.View Example