Filtering with dates in the QUERY function

If you’ve ever tried to filter on a date column in the Query function in Google Sheets, then you know how tricky it can be.

In a nutshell, the problem occurs because dates in Google Sheets are actually stored as serial numbers, but the Query function requires a date as a string literal in the format yyyy-mm-dd, otherwise it can’t perform the comparison filter.

This post explores this issue in more detail and shows you how to filter with dates correctly in your Query formulas.
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Data Cleaning and Pivot Tables in Google Sheets — My New Course has launched!

Data Cleaning in Google Sheets

There’s a joke in the data community that goes:

“You’ll spend 90% of your time cleaning data, and the other 10% of your time complaining about that…”

Do you deal with badly formatted data that takes you hours to tidy up, preventing you from making progress on your “real” work?

Ever wondered what the heck a Pivot Table is, and why you should care about them?

Do you ever find yourself repeating a process manually, like extracting zip codes from addresses?

This new course is designed to help you work with messy, real-world datasets. It’ll teach you techniques and best practices for cleaning data and preparing it for analysis and reporting.

This new course is aimed at beginner-to-intermediate Google Sheets users.

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How to build a real-time sales dashboard for E-junkie using Google Sheets and Apps Script

It’s day two of a four day product launch. You’ve worked hard all year to create a fantastic product, test your sales systems and tell the world about this amazing offer. You know you’ve sold 100 products so far, but…

…you don’t know whether your ads are effective, which affiliates are really killing it versus which have forgotten about your launch, or even whether your own emails are converting.

Looking at your sales log only, and having to decipher what’s happened since the last time you looked an hour ago, is like trying to drive in the dark without headlights.

Thankfully there is a better way to track your sales, so you can see your data, get insights about what’s working and what’s not, and immediately act to increase your bottom line.

This post looks at how to build a real-time dashboard for the E-junkie digital sales platform using Google Sheets:

Google Sheet e-junkie real-time dashboard
Google Sheet e-junkie real-time dashboard (fictitious data)
Want your own copy of this dashboard?
Click here to access your copy of this template >>

E-junkie is a digital shopping cart, used for selling digital products and downloads. The system handles the shopping cart mechanics, but does not do any data analytics or visualizations.

You can view a transaction log (i.e. a list of all your sales) but if you want to understand and visualize your sales data, then you’ll need to use another tool to do this. Google Sheets is a perfect tool for that.

You can use a Google Sheet to capture sales data automatically in real-time, and use the built-in charts to create an effective dashboard.

You’d be crazy not to have a tracking system set up, to see and understand what’s going on during sales events or product launches. This E-junkie + Google Sheets solution is effective and incredibly cheap ($5/month for E-junkie and Google Sheets is free).

The Write Life ran a Writer’s Bundle sale this year, during the first week of April. It’s a bundled package of outstanding resources for writers, including ebooks and courses, heavily discounted for a short 4-day sales window.

I created a new dashboard for The Write Life team to track sales and affiliates during the entire event. This year’s dashboard was a much improved evolution of the versions built for the Writer’s Bundle sales in 2014 (which, incidentally, was my first blog post on this website!) and 2015.

The biggest improvement this year was to make the dashboard update automatically in real-time.
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Google Sheets and Mailchimp integration using Apps Script

In this post, we’re going to see how to setup a Google Sheets and Mailchimp integration, using Apps Script to access the Mailchimp API.

The end goal is to import campaign and list data into Google Sheets so we can analyze our Mailchimp data and create visualizations, like this one:

Google Sheets and Mailchimp integration for campaign data analysis

Mailchimp is a popular email service provider for small businesses. Google Sheets is popular with small businesses, digital marketers and other online folks. So let’s connect the two to build a Mailchimp data analysis tool in Google Sheets!

Once you have the data from Mailchimp in a Google Sheet, you can do all sorts of customized reporting, thereby saving you time in the long run.

I use Mailchimp myself to manage my own email list and send out campaigns, such as this beginner API guide (Interested?), so I was keen to create this Mailchimp integration so I can include Mailchimp KPI’s and visualizations in my business dashboards.

For this tutorial I collaborated with another data-obsessed marketer, Julian from Measure School, to create a video lesson. High quality video tutorials are hard to create but thankfully Julian is a master, so I hope you enjoy this one:

(Be sure to check out Julian’s YouTube channel for lots more data-driven marketing videos.)

If you’re new to APIs, you may want to check out my starter guide, and if you’re completely new to Apps Script, start here.

Otherwise let’s begin.
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Help, my formula doesn’t work!

Admit it, we’ve all been there.

Whether you’re just starting out with Google Sheets or you’re a seasoned pro, sooner or later one of your formulas will give you an error message rather than the result you want.

It can be frustrating, especially if it’s a longer formula where the error may not be obvious.

Auditing and Debugging Formula Errors in Google Sheets

Match the error message in your Google Sheet to the sections below, and find out what might be causing your error.

  1. An error message popup prevents me entering my formula
  2. I’m getting an #N/A error message
  3. I’m getting an #DIV/0! error message
  4. I’m getting an #VALUE! error message
  5. I’m getting an #REF! error message
  6. I’m getting an #NAME? error message
  7. I’m getting an #NUM! error message
  8. I’m getting an #ERROR! error message
  9. I’m getting an #NULL! error message
  10. Other strategies for dealing with errors
  11. Functions to help deal with formula errors in Google Sheets
  12. Help! My formula is STILL not working

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