What's the maximum value you can store in a number field?

[timl]

What's the maximum value that you can store in a CDS number field?

The documentation says that you can store a total of 32 digits, with a maximum of six digits to the right of the decimal point.

https://docs.microsoft.com/en-us/common-data-service/entity-reference/field-data-types

But in my testing, I find that I can only store a maximum of 17 digits.

Can someone explain why this is? Is this an error with the documentation, or is there a bug in PowerApps that prevents you from saving more than 17 digits?

Thanks 

[AndyPennell · Accepted solution]

I can't speak to CDS, but PowerApps numeric limits are defined by Javascript:

http://stackoverflow.com/questions/307179/what-is-javascripts-highest-integer-value-that-a-number-ca...

[timl]

Thanks Andy,

So the conclusion from this is that the maximum numeric value that PowerApps supports is 9,007,199,254,740,990, even if the underlying data store could support a larger value.

Just out of curiosity, do all versions of PowerApps have a dependency on JavaScript? I naturally assume that the web version of PowerApps studio uses JavaScript, but do the Android and IOS versions also rely on JavaScript, and therefore also be subject to the same numerical limits?

[AndyPennell]

Yes, to both questions: the numeric limits are as stated, and JavaScript is the underlying technology for all PowerApps.

[timl]

Thanks @AndyPennell