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BAC Payment Integration in LithosPOS

LithosPOS supports integrated in-store payments through BAC Credomatic, a leading payment solutions provider in Central America, including Guatemala. This integration allows merchants to process debit and credit card transactions directly from the LithosPOS POS interface using a BAC payment terminal. BAC integration streamlines checkout by automatically sending the payable amount from LithosPOS to the BAC terminal, reducing manual entry errors and speeding up transactions.

Supported Region
- Guatemala
- Other BAC Credomatic–supported regions (depending on merchant agreement)
Supported Payment Methods
- Debit cards
- Credit cards
Prerequisites

Before enabling BAC integration, ensure the following:
- Active merchant account with BAC Credomatic
- BAC-approved payment terminal
- Network connectivity between LithosPOS and the BAC terminal
- BAC integration enabled by LithosPOS team
Configuration in LithosPOS Back Office
- Log in to LithosPOS Back Office
- Navigate to Settings > Payment Methods
- Click Add Payment Method
- Enter BAC as the payment method name
- Select BAC as the payment method type
- Assign the payment method to relevant stores
- Save the payment method and perform a POS sync
Configuration in the POS Application
- Open the LithosPOS application
- Go to Settings > BAC Settings
- Enter the BAC terminal connection details (IP address and port)
- Enable paper receipt printing if required
- Save the settings
BAC Payment Workflow
- Cashier adds items to the cart
- Cashier selects BAC as the payment method
- LithosPOS automatically sends the amount to the BAC terminal
- Customer completes payment on the BAC terminal
- BAC terminal returns the transaction result to LithosPOS
- If approved:
  - Sale is completed in LithosPOS
  - Payment is recorded under BAC
  - Receipts are printed based on configuration
- If declined or cancelled:
  - Sale remains unpaid in LithosPOS
  - Cashier can retry or select another payment method
Voids and Settlement
- Void transactions can be performed for same-day sales before the batch is settled.
- BAC follows a daily batch settlement process, where transactions are grouped and processed at the end of the business day.
- Once the batch is closed, voids are no longer available from LithosPOS.
- Any post-settlement adjustments should follow BAC Credomatic’s merchant procedures.
Reporting and Reconciliation
- BAC transactions are recorded in LithosPOS sales and payment reports.
- End-of-day reconciliation should compare LithosPOS reports with BAC terminal settlement reports.
Important Notes
- BAC integration is only available in supported regions such as Guatemala.
- Stable network connectivity is required for accurate and reliable transaction processing.
- Any terminal configuration changes should be coordinated with BAC support.
Support

For BAC integration activation, configuration assistance, or troubleshooting, contact Team LithosPOS Support with merchant and terminal details.