Follow the steps below to create a drop-down list using data validation in Excel. If you want to add a message pop up, you can click the Input Message tab and check the checkbox for “Show input ...

Whether you want to restrict data inputs, ensure consistency, or avoid errors, data validation in Microsoft Excel is the tool for you. It can also serve as a vital safety net if you plan to share your ...

Advanced list solutions are easy thanks to Excel's Table object. If you need a dynamic list, try one of these techniques. The article Five ways to take advantage of Excel list features showed five ...

How to use UNIQUE() to populate a dropdown in Microsoft Excel Your email has been sent Populating a dropdown with a dynamic list is easy thanks to Microsoft Excel’s UNIQUE() dynamic array function.

In the past two years, email marketing has skyrocketed. Opens, clicks, and conversions are up, while unsubscribes are down 50%, according to Oracle. If you have an email list, that's great news. The ...

In an attempt to block email spoofing attacks on yahoo.com addresses, Yahoo began imposing a stricter email validation policy that unfortunately breaks the usual workflow on legitimate mailing lists.