Functions
ISERR
True if value is an error other than #N/A
Try it
When to use it
When should I use ISERR instead of ISERROR?
Use ISERR when you want to detect any error except #N/A — it lets you treat missing-data signals (#N/A) differently from genuine formula errors like #DIV/0! or #VALUE!.
Used in
Syntax
ISERR(value)