How To Prevent Duplicate Entry In Column

May 25, 2009

I have a huge worksheet with 26 columns and 1200 rows. This worksheet is updated by 4 people everyday. Column C, H, N & R are updated daily by these 4 people so these are dynamic columns so to speak. I would like to have a VBA that informs that particular individual when he enters a duplicate data, maybe a popup saying duplicate entry.

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Prevent Duplicate When Entry From List

Oct 9, 2012

How prevent duplicate when entry from list?

Attachment file : testing.xlsx

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Prevent Duplicate Entry From Textbox Into Different Worksheet

Jun 12, 2009

I have a entry form in which i want to register customers. the first field is the customer number (which is unique(created by me) for every customer). This is TextBox 1 in the document. I would like to search for duplicates in worksheet 2, collumn A, when pressing "enter" to move from TextBox 1 to TextBox 2. A search for duplicates should start and a message should appear " duplicate found" if found, otherwise continue to TextBox 2 for further entry of information.

Please see my attached document for clarification.

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Data Entry By Textboxes On Userform - How To Prevent Duplicate Record Being Entered

Jan 3, 2013

I have created a userform with 3 text boxes. It also has three buttons - clear, Cancel and Generate record button.

User form takes entries in the three text boxes and on clicking the Generate Record button, the values of the three Text Boxes are inserted in Column A, B and C of sheet1. The columns keep on populating with new data on each submit in the row below the last record.

Now it is required to enter data only if the value entered in TextBox1 is new and has not been entered previously in column A. If textbox entry is already aviailable in column A, a message box of 'Record available' shoud be prompted and the text entry must not be allowed until the data entered in TextBox1 is not unique.

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Prevent Duplicate Data Entry Via Userform Based On Exact Match In 2 Columns

Jul 16, 2012

I have a userform with several textboxes and 2 comboboxes. The data that I need protected from duplication is based in the comboboxes. If I ignore the other fields and presume the following it may be easier to understand:

The comboboxes are populated by the data stored in sheet1 and when the userform is complete, the OK button populates all the data into sheet2

Combobox1 contains names eg, John, Julie, Bob etc
Combobox2 contains colours eg, Red, Blue, Green etc

I want the userform to allow the data to be entered into sheet2 only if it is not an exact duplicate of the choices in BOTH of the comboboxes

For Example
John Red
Julie Red
Bob Blue
John Blue

These are all ok, however, to try and enter John Red again would bring up a message box indicating a duplicate entry and prevent the data from being entered.

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How To Prevent Duplicate URL Entries In Cell In A Column

Mar 23, 2014

I tried to solve above problem using Data Validation formula. Data validation does not work if somebody copy paste the duplicate values,it works when somebody types duplicate values in next column. So if I want to enter lot of urls to a column then it is completely impossible to type so must have to copy paste from the browser. I have attached a sample sheet, howl to solve this problem either using formula or using Data validation in sample 1 and sample 2 respectively.

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Remove Row If Duplicate Entry In Column A

Sep 1, 2009

I would like a loop that would run through the information in column A and if its duplicated delete the entire row Also it needs to be able to handle 10 records to 10,000, it changes daily

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Macro To Delete An Entire Row If A Duplicate Entry Appears Only In A Certain Column.

Feb 20, 2009

Is there a macro to delete an entire row if a duplicate entry appears only in a certain column.

1. Look for the column header with the name "File Number"
2. Anytime the same number under the "File Number" column appears more than once in that column, keep the row that contains first occurrence of that number buy delete the entire row anytime that number is repeated in another row in that same column.

This is regardless of what is contained in the other columns. For example..let's say these cells contained this data...

B1 - UTE00225
B2 - UTE00546
B3 - UTE65513
B4 - UTE00225
B5 - UTE00225

In this case, I would want to keep rows 1, 2, and 3. But, I would want to delete rows 4 & 5 because the number "UTE00225" has already appeared first in B1. I'm using Excel 2003.

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User Box Options If Cell Entry Is A Duplicate Found In A Table Column

Aug 23, 2009

I have a table that i use for a customer database. and the end user adds new customers to this table, what i would like is for a message box to pop up whenever cell B2 matches an entry in a column in the customers table. the table starts on row 25, and the column i would like to check for duplicates is column B. I would like the message box to give the user the message "A customer by this name already exists, Would you like to load this customers file?" If the answer is yes, then the row that the match was found on would be copied and pasted onto row 1. if the answer is no, then nothing else happens. I hope this makes sense, i am posting this sheet of my workbook for reference.

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Prevent Deletion & Allow Entry

May 2, 2007

I am trying to complete a spreadsheet that will be shared by several users but have come across a slight problem. I need them to be able to enter text into blank cells but when the the text has been enetered for them not to be able to delete or edit it again in columns A & B. They should also not be able to delete rows or columns. I have tried with other peoples help but as soon as the spreadsheet becomes a shared document I get a run-time error 1004 when entering in any box

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Prevent Entry In Cell Even Without Formula?

Jan 16, 2014

how can I prevent an entry in a cell even without formula lets say cells B1 , C1 , D 1 , E1

I want to prevent an entry in these cell and if you try an error message will display

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Prevent Data Entry If Condition Met

Jun 4, 2007

I am adding up the value of a range of cells in one cell. What I want is If the value of the cell which is adding up the values of the range of cells exceeds a particular number it should throw an error.

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Prevent Hyperlink On Cell Data Entry

Jun 22, 2009

Using 2003 - Is it possible to prevent cell data entry automatically creating a hyperlink for email/web url's. Using

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Prevent Duplicate Entries..

May 8, 2009

New here, I wanna do a "Prevent Duplicate Entries" into my column i try the following: http://www.mrexcel.com/articles/prev...duplicates.php
http://www.theexceladdict.com/_t/t040818.htm

They all work well but if I'm using copy and paste It doesn't work! why is tat so?
Second issue will be i'm wanna do prevent duplication for the whole column not just one cell.

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Loop To Prevent Duplicate

May 23, 2014

I have 4 work sheet 1st work sheet is Main, 2nd Clients, 3rd Pickup and 4th delivery In the main sheet i enter the information and one i click on add it send and save the information to their appropriate sheet what I want to know how should i create loop that can work at the same time when i press ADD so that is save only the information that does not exist.

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Prevent Duplicate Through VBA Userform

May 1, 2007

I made a userform and through this form I add my data into excel sheet. one of the colume is CODE. Want:

When I click on the frmEntry SAVE button, I want to check for duplicate on column CODE

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Looking To Prevent Duplicate Text In Cell

May 7, 2009

I have one main tab which I pull data from other various tabs. To match data the data, I create a "common unique ID", in other words I create a column on each tab and connect various cells with the ampersand.

So in each of the various tabs (and the main tab), I'll have a column with something like =A2&B2&C3

If the "unique ID" matches between the tabs it will pull back the desired phrase, or it will be left blank. (Just using an =IF(ISNA) formula)

If you have followed so far, on my main tab, I have a column for each of the various tabs. The information I am trying to match could be on any of the tabs, so I need a column using an =IF(ISNA) formula to attempt to match each tab. So, on the main tab, there are several columns which might have the phrase I am looking for. I use another ampersand function to add those columns. My problem is that occaisionally, what I am looking for is on multiple tabs. So, if I am normally pulling the phrase "Pending Loans Report" when a match is made, if it is on two tabs, the cell will add it twice "Pending Loans ReportPending Loans Report"

I realize this is confusing, so I attached a spreadsheet. The "main" tab I was referring to is sheet1. I really simplified it down to post here, but I think the main idea of my problem is still evident. The problem is line 15. Note how column M has "Pending Loans ReportPending Loans Report" - I'd like it to only say this phrase once. The macro pastes special values at the end, but I've highlighted some cells in red which show the formulas I used for that column. Columns N, O, P, Q, etc. all have virtually the same formula.

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Copying Row With Prevent Duplicate Entries

May 13, 2009

I've got this code for prevent duplicate entries, But I wondering if it's possible to add a copy rows to it? For Example

Columns C
ItemID ItemName
11 QWE
22 ASD
33 ZXC

So now I enter 22 in ItemID for this working code it will pop up a MsgBox saying Aready exist, Is it possible to add a code so that it will copy the existing copy and paste into the active row?

Private Sub Worksheet_Change(ByVal Target As Range)
Dim r As Range
Dim ans As String
Const myCol As Long = 3
If Intersect(Target, Columns(myCol)) Is Nothing Then Exit Sub
Application.EnableEvents = False.........

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Copying Row With Prevent Duplicate Entries

May 13, 2009

I've got this code for prevent duplicate entries, But I wondering if it's possible to add a copy rows to it? For Example

Columns C
ItemID ItemName
11 QWE
22 ASD
33 ZXC

So now I enter 22 in ItemID for this working code it will pop up a MsgBox saying Aready exist, Is it possible to add a code so that it will copy the existing copy and paste into the active row?

Private Sub Worksheet_Change(ByVal Target As Range)
Dim r As Range
Dim ans As String
Const myCol As Long = 3
If Intersect(Target, Columns(myCol)) Is Nothing Then Exit Sub

[Code] ........

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How To Prevent Duplicate Data Being Pasted

Jan 14, 2013

I have a worksheet that you can enter in

Forename, Surname, Area, D.O.B

This has a macro assigned that copies the data and pastes it into another worksheet at the next available row.

Now this works fine, but I want to be able to identify if the data already exists in the other worksheet then prevent it from being pasted and give an error message that the person already exists in the database.

Is this possible?

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Prevent Duplicate Entries In Range

Dec 30, 2009

Option Explicit
Dim myCount As Byte
Dim myColumn As String
Dim myRow As Long
Sub Worksheet_Change(ByVal Target As Range)
myCount = 0
If Range("B" & myRow).Value <> "" Then myCount = myCount + 1
If Range("C" & myRow).Value <> "" Then myCount = myCount + 1
If Range("D" & myRow).Value <> "" Then myCount = myCount + 1
If Range("E" & myRow).Value <> "" Then myCount = myCount + 1
If myCount > 1 Then....................

The above code pops up the message box when a second entry is made within the specified range, but OK button does not function, contents are not cleared, and Excel locks up.

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Prevent Duplicate Entries From UserForm TextBox

Feb 25, 2008

Is there a way i could put a validation on a text box that doesn't allow the user to enter a value that already exists in a given range. The object being to avoid duplicate entries.

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How To Prevent Duplicate Records From Being Entered On Recording Sheet

Feb 9, 2013

I have a created recording sheet (attached) for the purpose of recording moths. I send this sheet out to those recorders who live in my county and at the end of the year they send the filled in sheet back to me. Over time I have put safeguards onto the sheet to ensure that I get the cleanest data returned to me. However, there is still one area which is giving me problems - users entering duplicate records.

Some formula which will stop recorders from entering those duplicate records. There are many columns on the sheet which recorders have to fill in with information, but as far as the duplicate records are concerned it is where the same information is entered into columns C, F and J that I'm having a problem with. It would be great if, when the same information was entered in these columns that the affected cells were highlighted in some way and if an error message appeared saying 'Duplicate record, either delete or alter grid reference'

I have entered two test duplicate record on the 'macro moths' sheet of the attached file : Test Recording sheet.xls‎

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Custom Validation Formula To Prevent Duplicate Entries?

Aug 15, 2012

How do I set up a custom validation formula to prevent duplicate enties?

For example I I've already enter the song name 19 and Paul Hardcastle (BandName), how do I set it up where I can not enter that combination again on a row?

I was wanting to use a custom CountIF function but I could not get it to work.

A
B

Song
BandName

19
Paul Hardcastle

[Code] ....

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Prevent User To Enter Duplicate Using Data Validation?

Dec 27, 2013

I want to prevent user from entering duplicate text or numbers in a cell using the Data Validation.

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Prevent/Remove Duplicate Data From PivotTable Source

May 29, 2008

I am working pivot tables off of one large excel spreadsheet for my data. I have multiple pivot tables on each of 5 worksheets. The problem is this. Every other week I am sent an updated spreadsheet with the same column names each week which I then copy and paste it into the spreadsheet of the last one. When I refresh the pivot tables, I end up with duplicate field sets. For example, on column in the original data sheet is gender. On the first sheet I went through and renamed the "M"'s and "F"s to be "Male" and "Female" so that it is better looking when printed. Now when i get the new information and copy and paste it to rplace the old, and refresh the pivot tables, I end up with "Male" "Female" AND "M" "F". Now the "Male" and "Female" fields are empty and the "M" and "F" fields have the information. Is this a result of me renaming the fields?

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Testing For Duplicate Entry

Oct 18, 2013

I have a form that information is entered in. At the end the user can then save the information in a spreadsheet by pressing a command button. The updating to the spreadsheet works, it is the part where the last entry is tested against the info on the form to prevent a duplicate entry that do not work.

I have tested that the program reads the info from the spreadsheet (see the commented lines).

I can attach the whole spreadsheet, but some of the entries on the form are linked to another spreadsheet that make it a bit cumbersome to attach two files.

VB:
Private Sub cmdUpdate_Click()
Dim lRow As Long
Dim ws As Worksheet
Set ws = Worksheets("TonnageInput")

[Code] .....

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Duplicate Entry Warning?

Jan 29, 2014

I have a userform with a text box which asks for a Tag number which is then linked to a cell. Is it possible to show a warning dialogue box if a duplicate Tag number is entered?

how to set this up on a single cell also would like to see if code can be written for this?

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Remove Duplicate Entry Of Date

Jan 22, 2014

I am trying to remove the duplicate entry of the date the list goes like this

01/22/2014 6:10
01/22/2014 6:12
01/22/2014 6:13
01/22/2014 6:15
01/22/2014 6:17
01/23/2014 7:00
01/23/2014 7:01
01/23/2014 7:02
01/23/2014 7:03

But I want
01/22/2014 6:10

01/23/2014 7:00

I have attached a file where I need to clean up column A but still maintain the rows sheet one is what I have sheet 2 is what I am hoping to achieve.

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Restrict Duplicate Value Entry In Textboxes

Nov 24, 2008

I have a userform with 8 text boxes and users have to enter different numbers separated by commas like 1,5,6,15,28 and so on.

I want to put a validation that if a number is entered in any of the textboxes than the same shall not be allowed in any other textboxes. Even in the same text box, no duplicate number shall be allowed. ie if in a textbox 1,2,15 is entered , then in the same textbox also, user cannot enter 1 or 2 or 15 again.

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