Consolidate TDNs
It is more practical to hold only one TDN and split a TDN of the specific value when needed. This can be done using the Central Bank website. TDN Applications perform a consolidation if there is already a TDN held and a new one is received as a payment or transfer. The original TDN s is canceled and a new one is stored on the device or it is handled manually by the TDN holder.
Banks and merchants prefer to keep only one TDN for a larger value and split a smaller value TDN when necessary. When receiving a TDN it is consolidated in the larger, existing TDN.
The Split transaction is very fast, requiring only a few database operations. When the TDN is protected by a PIN or PKI some small amount of processing If any of the steps of the transaction failed the API Call will return an error message.
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