Classes vs. Distinctive Arguments: Advantages & Limitations

You created your Twilio SendGrid account, authenticated your area, added a devoted IP handle, and began sending. Now, you’re questioning how one can dive into the analytics of your e-mail occasions a bit of additional and skim the story behind the numbers.

As an Onboarding Engineer on Twilio SendGrid’s group, I’ve spoken with tons of of shoppers who know the metrics they need to monitor however aren’t precisely certain how they will use the instruments out there inside Twilio SendGrid. 

On this article, I’ll dive into how one can manage your e-mail analytics utilizing classes and distinctive arguments in addition to the advantages and limitations of these instruments.

Put together your e-mail knowledge

Earlier than you get began with distinctive arguments and class monitoring, it’s vital to resolve the way you’ll be organizing your knowledge and what metrics you’ll lean on. Listed below are a few tricks to get began.

Phase your target market

Completely different e-mail sorts present very distinct metrics by way of efficiency. So, deciding the way you want to section your viewers is step one in figuring out which instruments to make use of inside SendGrid.

Are you sending advertising and marketing or transactional emails? Are you sending a batch of emails for a tradeshow arising? Is that this a webinar for lead era? 

It’s vital to find out your target market from each a content material and analytics perspective. For instance, you may need to section your webinar emails from the blast of 100,000 welcome emails that have been simply delivered. 

Decide your most well-liked e-mail metrics

Earlier than you’ll be able to slice and cube the information with distinctive arguments and classes, you’ll have to resolve what a profitable e-mail marketing campaign appears to be like like. Will you take a look at open price or click on by means of price? Will you issue within the supply price?

For those who haven’t decided what metrics you’re trying to consider for efficiency, this useful resource on e-mail metrics will enable you rise up to hurry on what prospects are sometimes on the lookout for (likes, opens, clicks, blocks, and so on.).

Classes vs. distinctive arguments

Now that you’ve prepped your e-mail knowledge, let’s check out how one can dig into the main points of your e-mail analytics.

Twilio SendGrid’s Combination Stats Dashboard and Occasion Webhook will let you monitor the efficiency of your campaigns utilizing classes and distinctive arguments. A standard query we obtain from prospects is, “What’s the distinction between a class and a singular argument?” 

Whereas the 2 are comparable by way of performance, classes and distinctive (also referred to as customized) arguments have particular use instances for monitoring your e-mail lists.

That will help you resolve which monitoring instrument is the best one on your program, ask your self the next questions:

Distinctive Arguments

Are you utilizing Advertising and marketing Campaigns, E mail API, or each?
Higher suited to Advertising and marketing Campaigns
Higher suited to E mail API

Are you monitoring how every marketing campaign is performing or monitoring particular person recipients?
Tracks marketing campaign efficiency
Tracks particular person recipients

Are you monitoring your knowledge externally or utilizing Twilio SendGrid’s consumer interface?
Makes use of Twilio SendGrid’s consumer interface
Present exterior monitoring by way of the occasion webhook

Monitoring knowledge with classes 

You should use classes to research your completely different campaigns, however know there are limitations. Use classes to find out how, for instance, your webinar emails are performing versus your upcoming commerce present. 

Too many classes can decelerate your Twilio SendGrid consumer interface, so there’s a restrict of 100 classes per consumer. They’ll’t be deleted as soon as they’re created, so be strategic when figuring out mail segmentation.   

Classes have a each day utilization restrict of 100/day per consumer (1000/day for paid accounts).

Use Case

  • Think about your organization has an enormous occasion approaching in a few months (convention, lead era, and so on.). Your gross sales or advertising and marketing group is ready to ship a batch marketing campaign to 1000’s of recipients, however you’d like to trace the efficiency metrics of those campaigns. 


  • Classes will let you monitor issues like advertising and marketing messages vs. transactional messages in the identical batch.
  • Twilio SendGrid has categorical dashboards out there to you out of the field, so combination stats which might be particularly associated to classes can simply be analyzed at a excessive stage.
  • You should use that info to peruse various kinds of classes and see the stats solely related to that class.


  • Classes have a each day utilization restrict of 100/day per consumer (1000/day for paid accounts).
  • This limitation is in place to supply you the most effective expertise whereas utilizing Twilio SendGrid as a result of too many classes decelerate the UI.

Monitoring knowledge with distinctive arguments

Use distinctive arguments to trace particular person recipients or analyze knowledge externally.

In comparison with classes, distinctive arguments are limitless.

For those who’re primarily utilizing the E mail API, these are higher suited, as class utilization may rapidly add up. 

Use Case

  • You’re planning on utilizing Twilio SendGrid’s occasion webhook to devour open, click on, and spam report knowledge. It is advisable to go an argument that the e-mail is “testing” or “manufacturing.” You want to go an argument that filters for “manufacturing solely” occasions.


  • In comparison with classes, distinctive arguments are limitless.
  • Distinctive arguments are advantageous if there’s a want to trace knowledge on a extra granular stage.
  • You possibly can present a key worth pair hooked up to recipients (Ex: customerID: 4567). This lets you customise your monitoring parameters per recipient nonetheless you’d like.


  • Sadly, you can not question distinctive argument info inside the UI.
  • Like we talked about within the use case, the occasion webhook would be the greatest instrument to make use of for exterior monitoring. This can require extra growth work in your finish.

Recap: Classes and distinctive arguments

To recap, classes are higher suited to view general marketing campaign efficiency whereas distinctive arguments are nice for monitoring the engagement of particular person recipients. 

Whether or not you resolve to make use of classes, distinctive arguments, or each, is determined by your use case. For those who’re undecided what you have to be monitoring, return to the fundamentals and consider the way you’re segmenting your campaigns and your markers for a profitable marketing campaign. 

For assist understanding how your e-mail campaigns are performing, Twilio SendGrid has a fantastic overview of statistics that gives particulars on how your e-mail is getting used. Be happy to achieve out to our help group or try the classes docs article for any extra questions on establishing these options on your e-mail venture.

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