So, if you want more top tips then sign up for my Monthly Newsletter where I share 3 Tips on the first Wednesday of the month and receive my free Ebook, 30 Excel Tips. So, now we have the unique ID for each customer record by combining CONCATENATE, LEFT and COUNTIF Functions. The green arrows indicate the expanding range of cells.
You can see this demonstrated clearly in the screencast below. By the time it finds the second entry of LONDON the range it is looking in has been expanded to $B$3:B7,B7, and so on and so forth. So, the first time Excel looks for LONDON the range of cells it is referencing is just the one, hence it generates 1. By anchoring the first cell of the range, the range which Excel analyses is expanded as we drag the formula down the column of cells. Where the range of the COUNTIF formula is $B$3:B3,B3. To complete the formula for our first cell, we use the formula We make the criteria that Excel uses dynamic. The second time it appears we it to count and put 2 in the cell and so on and so forth. For example the first time the City London appears we want Excel to place 1 in our cell. So, in this example, we want Excel to count as it travels down the column of data how many times each city appears in the data. This argument can be a number, text string, cell reference or expression. You put the range in a formula like you usually do in Excel.Ĭriteria – defines the condition that tells the function which cells to count. Range – defines one or several cells to count.
COUNTIF uses a very simple syntax as there are only two arguments. We will use this to count how many times incrementally the City names in Column B appear. So the fourth argument we use in the CONCATENATE formula is COUNTIF. We now need to generate a unique last number for the end of the ID. We can easily do this by inserting another argument in the CONCATENATE function. we already have the first part of our formula, and the LEFT function becomes the first argument as below So, in our formula, we want to take the first three (3) letters of the City Names in Column B with the header ‘City’. This means that this is an optional argument, which if left out default the argument to 1. Num_chars is the number of letters you want to extract from the full string. Text is the string you want to extract from (that is the cell reference that holds your text string) The LEFT Function in Excel extracts a given number of characters from the left side of a supplied text string. Here is a quick recap of LEFT and it’s syntax. So, the first part of the formula will join the first three letters of the City contained in cells in column B. The subsequent arguments are optional, hence the brackets. The syntax of CONCATENATE is simple and has only one required argument. This will join several strings together into one text string.
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