Prevent Duplicates In Formula Generating Same Names

Nov 7, 2006

The following attacted program is a name generator. It randomly generates names from the Roster sheet to the shuffle sheet (to be randomized) then displays it on the watchbill sheet. The problem I'm having is that the names seem to be repeating themselves before the entire list is used at least once from the roster sheet. I need all the names to generate at least once then have it fairly repeat the names (but not in the same columns on the watchbill sheet). Can this be done using the formulas I have? I've been trying to figure this out forever, its just a little beyond my level.

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Generating A Repeating List Of Names From An Ever Changing Roster.

May 2, 2006

I have a workbook where Sheet 1 Col A is a list of dates. Sheet 2 Col A is a relatively short list of constantly changing names. I need to put this list of names in a repeating fashion in Sheet 1 Col B. Ideally I would like for Sheet 1 to regenerate Col B each time the roster list is changed.

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Looking Names In A List With Names Written Differently And With Duplicates

Aug 26, 2008

I am using Excel 2003 and Windows XP.

I have been given a list of my firm’s target clients (in excel) and an opportunities report (exported into excel) from our CRM system, which lists all the opportunities (i.e. opportunities to sell/provide products/services) that have been created for each client. Some of the column headings in the opportunities report are as follows:

Client; Opportunity ID; Opportunity Name; Opportunity Description; Created by; Date Created etc.

What I need to do is lookup each client, from the target clients listing, in the opportunities report to see whether an opportunity has been created; and if so, return the row of values (i.e. the Opportunity ID; Opportunity Name; Opportunity Description; Created by; Date Created) for that client. The result will be placed next to the name of the client in the target client worksheet.

I have a couple of problems. Initially I tried to use the VLOOKUP function to lookup the client name in the opportunities report and return the Opportunity ID (I then planned to use the same formula to return values from the other columns); however, as the client names in the target client listing were not always written the same way as they were in the opportunities report, the formula often returned #N/A. The formula I used was

=VLOOKUP(A8,'Opportunities Report'!A2:F51,2,FALSE)

So for example, the first client that I was looking up was written as “ABC Ltd” but in the opportunities report it was written as “ABC Limited”.

My second problem was that for some clients, there were multiple opportunities listed in the opportunities report. Where this was the case, there was a separate row (repeating the client name in the first column) for each opportunity created. I think that was messing up my VLOOKUP formula as well.

Is there a way to look up the client name, from the target client listing, in the opportunities report even if it’s slightly different and return the row of values for each opportunity created for that client on a separate row?

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Prevent Duplicates Between 2 Sheets

Feb 10, 2012

I have 2 sheets, List 1 and List 2 Both lists contain generic part numbers in column A, so because there could be 2 manfacturers of the same part there will be duplication of the generic part number.

What I want is to prevent someone entering a generic part number in list 1, which already exists on list 2.

I there any cde which can be put in the sheet which will show an error message for this?

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Prevent Combobox Duplicates

Jul 17, 2007

How do i stop my combobox from displaying duplicate entries?

See Sort & Remove Duplicates From ListBox

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Prevent Duplicates In Random Generations

Oct 3, 2006

How do I keep the same names from coming up on the same column when randomly generated there (I hit f9 and names randomly generate on my sheet)? I'm trying to integrate this fix into =IF(Override!G5>0, Override!G5, Shuffle!A34) formula. That formula is the formula that recieves the randomly generated names into the cells I have chosen. The override is so I can do just that if I dont like the generation of names.


name 1
name 2
name 3
name 1 <---if that happens I want this cell to respond by reshuffling until it equals a name that is not in its column, but just that one cell, not the others.

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Prevent Duplicates Being Added Via UserForm

Oct 5, 2007

I am trying to prevent/remove duplicates and blank rows from occuring in a spreadsheet which is being populated via a Userform. The user must be able to add items to the spreadsheet during the normal course of work, so I guess that the blank line removal should occur when they exit the module or application.

However, duplicate prevention is particularly important as the data being captured pertains to products. Column A of the spreadsheet contains the product code and that will be the "watch" column. I have tried various options, particularly for removing blank rows and have so far have not had success.

Something that I have noticed is that when a new item is 'added' to the spreadsheet and the job is either cancelled or not saved, that a simple resize of the range through a recount of the rows to the first one empty does not remove the blank lines which is interesting too.

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Prevent Sheet Names Changes & Moving

Dec 27, 2007

I'm an intern working at an aerospace manufacturing house and I need to automate a lot of the excel files I created last summer.

Anyway, here is my problem:

I've been making macros but I am worried about people moving the worksheets around or changing their names which will have the potential to mess up the macros. What preventive measures can be taken/ changes in the code? I feel like there is something very simple I am missing.

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Get All Names In A Column And Exclude Duplicates?

Sep 11, 2013

I am trying to get a list of all names found in a column but exclude duplicates... I know this can be done in a pivot table but I need the names in a drop down box... if I use the pivot table as the source it will pick up "Grand Total" as a name.

The number of people can increase from week to week...

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Generating Text For Cells Based On Results Of Formula?

Aug 14, 2013

So basically I have a spreadsheet that tracks if a patient has turned in there required paperwork within the last 6 months and then changes the cell to white and lets me know how many days they have left until they are due to turn this paperwork in again. Then if it has expired I have a condition format change the cell to Red but I would like to add in the text EXPIRED to the cell. lastly I have Cells that have no data in them gray and I would like to add in red text saying No Paperwork.

I'm hoping this will be my last build of this spreadsheet so I can go ahead and start applying it to the real workbook [URL]

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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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Formula To Prevent A Higher % To Be Entered

Oct 2, 2009

What formula can I use to accomplish the following, if it can be done.

If B9 is 100% all the rest of the % cell inputs would be 0%

If B9 is less 100% ,lets say 50% all the rest of the % cell inputs would be less than or equal to 50% until any sum of those cells equal to 100%
in which case if I enter 50% on B9 and 25% on D9 and 25% on F9 their total sum would be 100%.

If I try to enter a % on H9 it should not allow me to do it
because then the total sum on O9 would be more the the original amount on A9

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Prevent/Stop #DIV/0! Error In Formula

Apr 21, 2009

The attached file contains hypothetical data on a basketball player's success from the free throw line. It lists the number of free throws attempted and the number made and then divides the number made by the number attempted to calculate the free throw percentage. However, I keep getting a # DIV/0! error in the games free throws weren't taken. How do I write the code so that when the error occurs, a message is displayed to the effect that no percentage can be reported because no free throws were attempted by checking the cell in column D? How do I use the IsError function to figure this out?

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Prevent Someone From Entering A Formula In A Cell

May 18, 2007

I'm creating a maths workbook in Excel. I want the user to workout the answer in his/her head and enter the answer into Excel. The only problem is, of course, that there is nothing stopping a user from simply typing a formula to obtain the answer! I have tried all data validation, apart from Custom which I can't figure out. Is there a way to prevent a user entering a formula on a worksheet?

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Prevent Deletion Of Formula & Other Cells

Sep 12, 2007

i have made a document for other users to use. how can i limit the paste function to ONLY ALLOW PASTE SPECIAL-- i wish to aviod damage to formatting and formula etc

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Prevent Cell Referencing Within Formula From Changing

Jul 30, 2009

I've got an issue where Formulas Referencing Cells on another sheet are getting changed automatically to refer the the moved cell data. The formulas on a sheet (2) refer to specific cells on sheet (1) within my workbook. I update Sheet(1) data with a macro. When sheet (1) updates, the present data gets shifted to the right.

In other words, I need to prevent the formulas from changing to reference the moved data values and keep referencing the initial cell with the new values. xample of change that occurs with update:


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Prevent Blank Date In If And Index Formula

Aug 10, 2009

Prevent blank date in if and index formula. I have the following formula:

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Prevent Formula Being Deleted When Visible To User?

Apr 20, 2013

I am using following code to effect a change which works fine:

Private Sub Worksheet_Change(ByVal Target As Range)
Sheets("Closed Flts").Unprotect "abcd"
Sheets("Faults").Unprotect "abcd"


But when the sheet is unprotected to effect this change the formula in cells ( row I and L) are visible to user and can delete them. Or they can even delete the cell itself or modify formula.

The formule in Row I is
And in Row L is

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Prevent Formula From Changing On Copy / Paste

Jun 17, 2014

I have a vlookup which checks another sheet and imports data. The formula is as such:

=IF(ISNA(VLOOKUP(B17,Data!A$1:$C$40,3,FALSE)),"",T(VLOOKUP(B17,Data!A$1:$C$40,3,FALSE))) .

The problem I have is when I paste and amend data on sheet Data! it changes the formula to

=IF(ISNA(VLOOKUP(B17,Data!A$1:$B$40,3,FALSE)),"",T(VLOOKUP(B17,Data!A$1:$B$40,3,FALSE))) .

How do I prevent it from doing this?

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Prevent Formula #REF! When VBA Macro Deletes Columns

Aug 5, 2009

I'm using the following code to delete columns:

Dim rng As Range
Dim i As Integer, counter As Integer

Set rng = Range("1:1")

i = 1

For counter = 1 To rng.Columns.Count

'If cell i in the range contains an "x",
'delete the column
If rng.Cells(i) = "x" Then
i = i + 1
End If


My problem is that I have cells in other worksheets linked to the worksheet that is running this macro and everytime I run it, I get a handful of "#REF" errors. I think this problem might be solved if I could simply delete the contents of the column rather than deleting the entire column. How can I modify my code to do this?

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Validation Formula To Prevent Spaces In Cell

Apr 27, 2007

I am in need of 2 validation macros (formulas) to enter into the validation criteria formula box when creating a custom validation.

1. A formula that will generate an error if there is a space in the text entry. Example:060107_Halo3CG prev.mpg would be an invalid entry due to the space after CG.

2. The same formula as above but this one also needs a 50 character limit added to the criteria.

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Prevent Formula Showing Error Values #DIV/0!

Jan 18, 2008

I Spoke too soon here, I am getting value errors, how to do it with conditional formating. I tried if cell value is =to #DIV/0! then white (dosent work). Richard this dosent seem to work mate =IF(SUM(F6:V6),"",AL6/SUM(F6:V6))

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Prevent #REF! When Moving Cell Referenced By Formula

May 14, 2008

I have an IF formula on one worksheet that refers to another worksheet (ex: =IF(Page1!$A13="";"";Page1!$A13). The problem is when I move data from one cell to another the formula becomes #REF. (ex: =IF(Page1!#REF="";"";Page1!#REF)).

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Prevent Formula Cell Referencing Updating

Jun 9, 2008

I have a series of worksheets, named, 'sheet1' 'sheet2' etc. through to 'sheet10'. A final worksheet, 'sheet11' has been produced that uses the formula: address=Sheet1!A1, address=Sheet2!A1, address =Sheet3!A1 etc. The same goes for other identical cells on each of the sheets. I am at the moment entering each cell on 'sheet 11' separately because if I copy the formula down it progressively changes the cell value and not the sheet number. How can I produce a formula whereby the cells remain identical but the sheets change progressively?

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Prevent Formula From Updating When Deleting Cells / Sheets

Nov 5, 2008

I've got a workbook that I'm currently designing and I've just realised that I need to delete a few sheets, paste in some new template sheets and rename them. The problem is, I've already completed my summary sheets and I don't want to have to redo the values. Essentially, I just want to (temporarily) turn off auto-updating of formulas when cells / sheets are changed/moved/deleted.

For practical purposes: I need to delete the sheet named "Jan", paste in a new sheet "MonthTemp", rename "MonthTemp" to "Jan" and have all my formulas not updated (e.g. still referencing "Jan" instead of "#REF!")

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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.



Paul Hardcastle

[Code] ....

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Prevent Formula References Changing When Add/Delete Rows

Jul 11, 2006

On my excell I have a lot of data on sheet 2 that i automatically pull form a database.

I have this fomula in a cell on sheet 1.

= SUMPRODUCT(--( 'Sheet2'!P5:P50000=1),--('Sheet2'!T5:T50000>TIMEVALUE("01:00")))

The problem is that when the data on sheet 2 gets updated and more lines added, the computer changes my formula for the cell on sheet 1 as well. the new formula will change to

=SUMPRODUCT(--( 'Sheet2'!P5:P50126=1),--('Sheet2'!T5:T50000>TIMEVALUE("01:00")))

when there is 126 lines of new data addes in on Sheet2. Id only 50 lines were added in on sheet 2 then the Formula would change to

=SUMPRODUCT(--( 'Sheet2'!P5:P50050=1),--('Sheet2'!T5:T50000>TIMEVALUE("01:00")))

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Stop/Prevent #VALUE In Formula Reference Error Cell

Sep 3, 2006

A1 refers to B1 which contains a number or #VALUE!

What could I use in A1 to return a number and if B1 = #VALUE!, a zero.

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Prevent Formula References Changing When Deleting Rows

Apr 21, 2008

What I have is basically a form on the main sheet. Here other users can add and/or delete information in a form. I refer to the information in another sheet with formulas.

Now everything was great when using protections/ validations, to the where they fill in the information, but the problem occur when they are allowed to delete and remove rows.

This is something that I want to allow them, even though I do realise that this is something that many advice against it.

To begin with I found the post about changing relative references to absolute references (ConvertFormula). Still the formulas changes when rows are added or deleted and I would have to redo all formulas and run the macro again. I then found posts advicing on the use of the INDIRECT forumla. This formula was exactly what I needed as the formulas would not alter when rows were added/deleted. Now the problem is a combination of the use of INDIRECT and the the ConvertFormula. Now if I write a formula, for example:


Then when I try to expand the formula over to the rest of the cells, then the references stay pointing at A1, when I want them to continue pointing at A2, A3, etc...

Now what I am looking for is some way to tell all my formulas, after expanding the original formula, that they should all have the INDIRECT function. If it was possible it would be great if you could implement it in the same way as with the absolute reference, for example:

For i = 1 To MyRange.Areas.Count
MyRange.Areas(i) = Application.ConvertFormula(MyRange.Areas(i).Formula, xlA1, xlA1, xlIndirect)
Next i

Now the above code sample does not work of course, as there should be xlAbsolute instead of xlIndirect, but I hope you understand my intention. Do anyone have the answer to my problem? Is there an easy way to implement the INDIRECT function into a big amount of formulas?

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Input IF Formula To Prevent Zeros Appearing In TOTAL Cell

Sep 10, 2012

How do I input an IF Formula to prevent Zeros appearing in the TOTAL cell ....

Example: TOTAL Cell (A10) =sumA1:A9

ALSO difference between two sums

Example TOTAL Cell (A20) =SumA10-A19

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