How to Set Up "Start with Card" MDB Level 1 Pre-Selection | VPOS Media
In MDB cashless systems, "default credit" during preselection reserves a set amount on the payment method before a product is chosen, ensuring funds are available for the upcoming purchase.
Quick Reference
Use this guide to configure your VPOS Media device so the transaction begins when a customer taps or inserts their card, then selects a product. This is the "Start with Card" flow using MDB Level 1 pre-selection.
Quick Reference
If you're already familiar with the setup process and just need the configuration values, here they are:
Card Reader Tab
| Setting | Value |
| Card Reader MDB Level | 1 |
| Decimal Place | 2 |
| Transaction Start Method | Mag+Contact+Contactless |
MDB Tab
| Setting | Value |
| Cashless MDB Address | Enable Cashless Device #1 ✅ |
| MDB flags | 02 Pre-selection Enabled |
Payment Tab
| Setting | Value |
| Default Credit | Set higher than the most expensive product in the machine |
| Default Credit | Enabled ✅ |
⚠️ Important: The Default Credit value must be higher than the price of the most expensive product on the machine. After entering the amount, make sure to select the checkbox to enable it.
For step-by-step instructions on where to apply each setting continue with the video and full guide below.
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