Help with schedule, new excel user

[Holmes89]

I'm looking to have row A highlight certain cells when a duplicate value is added into row I. Attached is what it looks like now I have taken off the date, I'm looking to learn excel better so if someone could post a formula that would do so and explain the values in the formula and what they do that would be fantastic and very appreciated.

 

[etaf]

you can use a countif() in conditional formatting - so it will look at A2 and then count how many times that value exists in column I
so if its once , then you get a 1 , if its a duplicate then you will get a number > 1

=Countif($I$2:$I$1000, A2)>1
the $ fix the columns and rows , so as we go down the column A , I is still the same range
1000 you can change to the maximum number of rows that you will ever get in the sheet .......

Book6
	A	B	C	D	E	F	G	H	I	J	K
1	table available										formula just to see what it does
2	aa1								relief 1		1
3	aa2								aa1		1
4	aa3								aa2		1
5	aa4								aa3		2
6	aa5										1
7	ab1								relied 2		2
8	aa4								aa4		2
9	ab1								aa5		2
10	ab2								ab1		1
11											0
12									relief 3		0
13									aa4		0
14									ab1		0
15									ab2		0
Sheet2

Cell Formulas
Range	Formula
K2:K15	K2	=COUNTIF($I$2:$I$22,A2)

Cells with Conditional Formatting
Cell	Condition		Cell Format	Stop If True
A2:A31	Expression	=COUNTIF($I$2:$I$1000,A2)>1	text	NO

for 2007, 2010 , 2013 , 2016 , 2019 or 365 Subscription excel version
Conditional Formatting

Highlight applicable range >>
A2:A1000 - Change, reduce or extend the rows to meet your data range of rows

Home Tab >> Styles >> Conditional Formatting
New Rule >> Use a formula to determine which cells to format
Edit the Rule Description: Format values where this formula is true:
=countif($I$2:$I$1000,A2)>1

Format [Number, Font, Border, Fill]
choose the format you would like to apply when the condition is true
OK >> OK


A SMALL sample spreadsheet, around 10-20 rows, would help a lot here, with all sensitive data removed, and expected results mocked up and manually entered, with a few notes of explanation.

This will possibly enable a quicker and more accurate solution for you.

MrExcel has a tool called “XL2BB” that lets you post samples of your data and will allow us to copy/paste your sample data into our Excel spreadsheets, saving a lot of time.

XL2BB - Excel Range to BBCode

Excel 'mini-sheet' in messages - XL2BB Although experts prefer to read your description and question instead of working in your actual file to solve your problem, there are times that it is difficult to explain an issue without providing actual...

www.mrexcel.com

You can also test to see if it works ok, in the "Test Here" forum.

Test Here

Use this forum to test your signature, learn bbcode, smilies, XL2BB, etc. Threads in this forum are automatically deleted after no replies for seven (7) days

www.mrexcel.com

OR if you cannot get XL2BB to work, or have restrictions on your PC

then put the sample spreadsheet onto a share

I only tend to goto OneDrive, Dropbox or google docs , as I'm never certain of other random share sites and possible virus.
Please make sure you have a representative data sample and also that the data has been desensitised, remember this site is open to anyone with internet access to see - so any sensitive / personal data should be removed

Make sure you set any share or google to share to everyone