processingInformation. authorizationOptions. initiator. merchantInitiatedTransaction. processorTransactionID {#processing-info-auth-ops-initiator-mit-proc-trans-id}
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This field is available only on the `FDMS Nashville` processor.  
The transaction ID value for subsequent merchant-initiated transactions. The value for this field is returned in the processorInformation.transactionID field in the response message for the initial authorization in the series.

Specifications {#processing-info-auth-ops-initiator-mit-proc-trans-id_Specifications}
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* **Data Type:** String
* **Data Length:** 16

Mapping Information {#processing-info-auth-ops-initiator-mit-proc-trans-id_Mapping}
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* **REST API Field:** processingInformation.authorizationOptions.initiator. merchantinitiatedTransaction.processorTransactionID
* **SCMP API Field:** processor_trans_id
* **Simple Order API Field:** processorTransId