Correct a #N/A error
This error indicates that a value is not available to a function or formula.
Symptom
Microsoft Excel displays #N/A in one or more cells on a worksheet.
Causes

Data is missing, and #N/A or NA() has been entered in its place.

An inappropriate value was given for the lookup_value argument in the HLOOKUP, LOOKUP, MATCH, or VLOOKUP worksheet function.

The VLOOKUP, HLOOKUP, or MATCH worksheet function was used to locate a value in an unsorted table.

An array formula is using an argument that is not the same number of rows or columns as the range that contains the array formula.

One or more required arguments were omitted from a builtin or custom worksheet function.

A custom worksheet function that you use is not available.

A macro that you run enters a function that returns #N/A.
Resolution

Optionally, if error checking is turned on in Excel, click the button that appears next to the cell that displays the error , click Show Calculation Steps if it appears, and then click the resolution that is appropriate for your data.
Tip Review the following resolutions to help determine which option to click. 
If you manually entered #N/A in a cell, replace it with actual data if that data is now available. For example, if you entered #N/A in cells where data is not yet available, formulas that refer to those cells also return #N/A instead of attempting to calculate a value. If you enter a value instead, the error should be resolved in the cells that contain the formulas.

Make sure that the lookup_valueargument that you entered in a HLOOKUP, LOOKUP, MATCH, or VLOOKUP worksheet function is the correct type of value. For example, verify that you entered a value or a cell reference instead of a range reference.
For information about using the correct arguments with functions, see HLOOKUP function, LOOKUP function, MATCH function, or VLOOKUP function.

By default, functions that look up information in tables must be sorted in ascending order. However, the VLOOKUP and HLOOKUP worksheet functions contain a range_lookup argument that instructs the function to find an exact match even if the table is not sorted. To find an exact match, set the range_lookup argument to FALSE.
The MATCH worksheet function contains a match_type argument that specifies the order the list must be sorted in to find a match. If the function cannot find a match, try changing the value of the match_type argument. To find an exact match, set the match_type argument to 0.

If an array formula has been entered into multiple cells, make sure that the ranges that are referenced by the formula have the same number of rows and columns, or enter the array formula into fewer cells. For example, if the array formula has been entered into a range that is 15 rows high (C1:C15) and the formula refers to a range that is 10 rows high (A1:A10), the range C11:C15 will display #N/A. To correct this error, enter the formula into a smaller range (for example, C1:C10), or change the range to which the formula refers to the same number of rows (for example, A1:A15).

Enter all required arguments in the function that returns the error.

Make sure that the workbook that contains the worksheet function is open and that the function is working properly.

Make sure that the arguments in the function are correct and are used in the correct position.