Payments and Collection Methods in POS

Sarah's Point of Sale module allows you to collect sales with different payment methods and record each cash operation.

Supported payment methods

Depending on your company's configuration, you can use a combination of:

• Cash
• Cards (recorded as card payment or external POS)
• MercadoPago (direct integration with cash registers / connected devices)
• Other custom methods (transfer, accounts receivable, etc.).

Basic collection flow

1. Build the cart with products the customer will buy.
2. Select the customer if you need to invoice A/B or record the sale in someone's name.
3. Click Collect.
4. Choose the payment method or combine several (for example, part cash and part card).
5. Confirm the collection and issue the corresponding receipt.

Cash collections

When you choose cash:

• You can indicate the amount given by the customer.
• The system calculates the change automatically.
• The movement is recorded in the corresponding cash register.

This payment type is ideal for fast counter operations.

MercadoPago collections

If you have MercadoPago integration configured:

1. Select MercadoPago as payment method.
2. The system generates the payment order (QR or Point) using integration endpoints.
3. The customer pays with their wallet / card on the device/QR.
4. Sarah waits for MercadoPago confirmation (webhook) and reflects the payment status.

Advantages:

• You don't need to manually enter amounts.
• The receipt is linked to the actual collection operation.

The technical configuration of MercadoPago integration is detailed in the
Integrations · MercadoPago section.

Mixed payments

In some sales you can combine several payment methods (for example, cash + card).

In those cases:

1. From the collection screen, add the first payment method and its amount.
2. Add a second payment method to complete the total.
3. Verify that the sum of all methods matches the sale total.

The system will record each part as an independent cash movement.

Payment surcharges

Some boxes (cash registers) can have a payment surcharge percentage configured. When you select a payment method linked to a box with a surcharge:

• The Payment and Quick invoice modals calculate the surcharge automatically based on the amount and the box’s percentage.
• The invoice shows the payment surcharge clearly in the total (subtotal + surcharge = total).
• Surcharge percentages are defined per box and appear in the Boxes table and in the box configuration labels.

This lets you pass on card or other payment costs to the customer when required by your business.

Relationship with cash register and reports

Each collection will record:

• The amount, the payment method, and the associated cash register.
• The user who performed the operation.
• The linked receipt (invoice, ticket, note, etc.).

This allows your cash register and sales reports to accurately reflect:

• What was collected.
• How it was collected.
• In which shift/cash register it was recorded.

For more details on cash closings and counts, review the
Cash Registers and Shifts section in the features documentation.