Integration with Other Modules

9.1 Inventory Integration

• Product Linking — Each drug in the catalog links to an Inventory product (must be batch-tracked)
• Batch Tracking — Expiry dates come from Inventory product batches
• Stock Levels — Available stock is checked during dispensing
• FEFO — First Expiry, First Out principle is followed for batch allocation

9.2 POS Integration

• Sell Screen — Pharmacy validation runs automatically when pharmacy products are in the cart
• Dispensing — Dispensing log entries are created after POS sale completion
• Returns — Sale voids/returns create reversal entries in the dispensing log
• Supervisor PIN — POS supervisor PIN verification is used for emergency overrides

9.3 Accounting Integration

When the Accounting module is enabled:

• Pharmacy sales flow through POS accounting posting
• Revenue is posted to the General Ledger per the POS posting configuration