How to Use the ISERR Function in WPS on Windows

Use the ISERR function with 4 how-to topics, all available without membership; choose a topic from the index and follow the steps to complete the task.

How-to Index

How-to Guide

1. Enter the ISERR function

Entry point: Formulas tab → Formula Bar

1. Open WPS Spreadsheet and select the cell where you want to show the result.
2. Type = in the cell or in the Formula Bar.
3. Continue by typing ISERR(.
4. Get ready to enter the value, reference, or formula expression that you want to test.

Success Criteria

• Interface result: The selected cell enters formula editing mode.
• Next action available: You can continue entering arguments and complete the formula.

Tips While Using

• Start the formula with =.
• Keep the opening parenthesis after the function name so you can continue entering the argument.

2. Review syntax guidance and fill in arguments

Entry point: Function input area in the Formula Bar

1. After typing ISERR(, review the syntax guidance shown by the app.
2. Enter the argument you want to test, such as a cell reference or expression.
3. Check that the parentheses, separators, and references are correct.
4. Press Enter to confirm the formula.

Success Criteria

• Interface result: The cell shows a TRUE or FALSE result.
• Next action available: You can copy the formula to other cells if needed.

Tips While Using

• If the parentheses do not match or the argument format is incorrect, the result may not return as expected.
• If the formula is long, editing it in the Formula Bar can make review easier.

3. Use ISERR with a cross-worksheet reference

Entry point: Target cell → Formula Bar

1. Select the result cell in the target worksheet.
2. Type =ISERR( and then switch to the worksheet that contains the referenced value.
3. Select the cell or range you want to test and complete the reference expression.
4. Add the closing parenthesis and press Enter.

Success Criteria

• Interface result: The cell returns TRUE or FALSE to show whether the referenced result is an error value.
• Next action available: The result updates automatically when the source data changes.

Tips While Using

• Make sure the worksheet name and cell position are correct.
• If the referenced item is already invalid, ISERR may return TRUE.

4. Use ISERR inside a nested formula

Entry point: Formula Bar

1. In the target cell, start a formula that includes another function or expression.
2. Put the expression you want to test inside ISERR().
3. Continue combining it with IF or other logic as needed.
4. Press Enter and review the result.

Success Criteria

• Interface result: The formula returns a logical value, or a combined formula returns the specified output.
• Next action available: You can fill down or copy the formula to other cells.

Tips While Using

• If the nesting level is high, check intermediate results step by step.
• If you need to identify #N/A separately, use a more specific function for that case.