# poiId

val poiId: String

This is the hierarchical identification of the POI System and (possibly) a POI Terminal if necessary for the related data. Its scope is limited on the Sale to POI protocol only, and has a meaning for the Sale System only. In a Reversal, identify the POI Terminal which has initiated the transaction to reverse. In a TransactionStatus, identify the POI Terminal which has initiated the transaction to enquire. In the body of the Diagnosis request, it allows a POI to request the status of another POI. In the Diagnosis request, the POIID data element identifies the target of the diagnosis. It could point not only a POI Terminal, receiver or not of the Diagnosis request, but also the POI Server