If there's one official Marketo doc that needs some edits, it's the Marketo Field Limits by Field Type rundown.

 

     Unfortunately, that article has incorrect info and some sins-of-omission.

 

     Be warned: most of this post is (necessarily) dry and technical. But I always find competing claims to be interesting, almost regardless of the topic. Maybe you will too! Plus, even experienced high-level programmers (meaning languages other than C and C++) don't have this stuff at their fingertips, and may make implementation mistakes as a result. So if you're in a meeting and want to show some mild “data scientist” chops, these are good facts to drop.

 

     I'll be adding to this series over time. To start off...

 

Integers

From the doc:

 

Integer

Values are limited to between -9223372036854775808 and 9223372036854775807.

    

     This is technically correct.

 

     Marketo stores Integer fields as signed 64-bit integers — signed meaning they can be negative or positive — so they fall into the range of -(2^63) to +(2^63-1). It can be useful to look at the high number in an easier-to-read way:

 

9 223 372 036 854 775 807

 

     So 9 quintillion, 223 quadrillion, 372 trillion something.

 

     If such a number seems unimaginably high in a martech scenario, I fully agree (though don't forget the ol' Grain of Rice parable).

 

     But the truth is you can only safely go up to the max value if you don't integrate any other apps with Marketo. No Salesforce, no JavaScript, no 32-bit PHP apps or older databases. When you integrate, the actual limit can be a tiny fraction of that.

 

 

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