Error Message 29
PIH of the first invoice to be sent should be “ZERO value encoded to base64”, this sequence is associated with each device/PCISID onboarded, so in this scenario where there are 2 registered devices with 2 unique PCSIDs, each device should maintain it’s own unique sequence of the unique identifiers such as ICV, PIH. so the invoice 3 (which is the first invoice to be sent from the new device) will be counted as an invoice(1), and its first invoice’s PIH should be “ZERO” decoded to base64.