Verify Credit Card Numbers & Expiration Dates

In this Microsoft Access video tutorial, I will teach you how to verify that a credit card number has been entered in a valid format. In addition, we will check the expiration date to make sure that it is also valid and not expired.

Harlan from Williston, North Dakota (a Gold Member) asks: We do a lot of business at farmer's markets and other rural areas without great cell service. I bring my laptop and get folks' credit card numbers and enter them in manually, then process them when I get back home. Sounds old-fashioned, I know. Not much else we can do. Everyone pretty much knows everyone so I'm not worried about fraud. One of my major problems, however, is entering in credit card number or expiration dates wrong. There are three of us using the database (myself, my wife, and my son) and sure enough every week we get a handful of card numbers where we have to call the customer and ask them to verify their number for us. It's a pain. Any way you can help cut this down?

Members

Members will learn how to make combo boxes for the expiration month and year. The year box will only be filled with valid years. We'll make a custom format based on the card type. We'll perform an checksum using the Luhn algorithm to make sure the card number is valid. 

Gold Members will learn how to encrypt the credit card number in the table so in case anyone gets access directly to the table database, all they'll see is garbage. We'll make encrypt/decrypt buttons and add a password.

•  01. Free Video
•  02. Extended Cut Video - Silver
•  03. Gold Extended Cut Video - Gold
•  Database Download - Gold
• Verify Credit Card & Luhn Check VBA in Code Vault - Gold

Silver Members and up get access to view Extended Cut videos, when available. Gold Members can download the database template from class plus get access to the Code Vault. If you signed up on YouTube you have to register on my YouTube Find User page so I can set up your account here on my web site. If you're not a member, Join Today!

Recommended Courses

• Data Encryption Seminar: https://599cd.com/Encrypt
• Access Security Seminar: https://599cd.com/Security

Pre-Requisites

• Input Mask: https://599cd.com/InputMask
• Format: https://599cd.com/Format
• String Functions: https://599cd.com/StringFunctions
• Intro to VBA: https://599cd.com/IntroVBA
• AfterUpdate: https://599cd.com/AfterUpdate
• Year End Sales Report: https://599cd.com/YearEnd
• BeforeUpdate: https://599cd.com/BeforeUpdate
• If Then: https://599cd.com/IfThen

Learn More FREE Access Beginner Level 1 Access Level 2 for $1.00 Free Templates TechHelp Free Templates Blank Template Contact Management Order Entry & Invoicing More Access Templates

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