IF ISERROR VLOOKUP formula in Excel and its alternatives

This tutorial demonstrates how to effectively handle errors in Excel's VLOOKUP function using the ISERROR function and its alternatives. VLOOKUP, while powerful, frequently returns errors like #N/A, #NAME?, and #VALUE!. This guide provides solutions to manage these errors gracefully.

Common VLOOKUP Error Causes:

The most frequent error is #N/A, indicating the lookup value wasn't found. This can be due to:

• The lookup value's absence in the lookup array.
• Misspellings in the lookup value.
• Leading/trailing spaces in the lookup value or column.
• The lookup column not being the leftmost in the table array.
• Lookup values exceeding 255 characters (#VALUE!).
• Incorrect function names (#NAME?).

Using IF(ISERROR(VLOOKUP(...))):

The IF(ISERROR(VLOOKUP(...))) formula is a versatile solution compatible with all Excel versions (2000-365). It allows for custom error handling:

IF(ISERROR(VLOOKUP(…)), "*text_if_error*", VLOOKUP(…))

This formula checks for any error returned by VLOOKUP. If an error occurs, it displays the specified "text_if_error"; otherwise, it shows the VLOOKUP result.

Returning Blank Cells:

To return a blank cell instead of custom text, use an empty string ("") as the error value:

IF(ISERROR(VLOOKUP(…)), "", VLOOKUP(…))

Yes/No Error Handling:

For simple "Yes" or "No" indicators, use:

IF(ISERROR(VLOOKUP(…)), "No", "Yes")

Alternatives to ISERROR:

Modern Excel versions offer alternatives:

• IFERROR (Excel 2007 and later): A simpler syntax for handling any error: IFERROR(VLOOKUP(…), "*text_if_error*") However, it only allows for a single error response.

• IF(ISNA(VLOOKUP(...))) (Excel 2000 and later): Specifically handles #N/A errors, leaving other errors visible for debugging.

• IFNA (Excel 2013 and later): A more concise version of IF(ISNA(...)).

• XLOOKUP (Excel 2021 and Excel 365): Built-in error handling with the if_not_found argument. Only handles #N/A.

The choice of method depends on your Excel version and the level of error control needed. ISERROR provides the most comprehensive error handling across all versions, while newer functions offer streamlined solutions for specific error types in more recent Excel releases. Downloadable examples are available.

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