Validate Credit Card Number Length to 16 Characters

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How to Enforce 16 Character Credit Card Number Validation in Sale Bill?

This tutorial will guide you through the process of enabling a feature in Logic ERP that validates credit card numbers to ensure they are exactly 16 characters long during billing.


Access Global Settings in Logic Admin

  • Open Logic Admin.

  • Navigate to Global Settings.

  • Under POS Options, go to the POS Options 1 section.

  • Locate and enable the option labeled as:

"Validate Credit Card Number Length to 16 Characters"

  • Click Save and restart the software to apply the changes.


Implement the Feature in the Billing Window

  • Open the Sale Voucher window.

  • Start a new transaction and add items to the bill.

  • Click Save to proceed to the payment window.

  • Select Credit Card as the payment method.


Test Case 1: Enter Invalid Credit Card Number

  • Enter a credit card number that is not 16 digits long.

  • Attempt to save the transaction.

  • Result:

    • An error message will appear:

      “Credit card number must be 16 characters long.”

  • The system will not allow the transaction to proceed.


Test Case 2: Enter Valid Credit Card Number

  • Now, enter a valid 16-digit credit card number.

  • Save the transaction.

  • Result:

    • ✔️ The payment will be successfully accepted.

    • No error is displayed.

    • The system confirms that the validation is working correctly.


Why Use This Feature?

  • Ensures accuracy and standard compliance for credit card entries.

  • Prevents incomplete or incorrect card data from being processed.

  • Enhances billing integrity and reduces transaction errors.

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