Avoiding User From Inputting Duplicate Entry Into Single Cell In Excel

Dec 3, 2013

I have a worksheet in which i am asking a user to enter manually a number in cell E3. Suppose the user starts with 100, then the next time he is entering in E3 he shoudnt be able to enter 100 nor any number less than 100. I dont have a range for the numbers that the user is going to enter.Therefore countif function does not work. Is there any way that i an store the number taht the user enters first in cell E3 and then use that database to avoid the user from entering the same or a number lesser than that number.????

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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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i have an address that is all in one cell displayed like

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Cell A1 would be 101 hampton court
B2 Hampton Heath
C2 Hampton Town
D3 Hamptonshire
E5 HA01 1AS

each part of the address is split by a comma, so i have tried to use that as a identifier as to where that part of the address is, but failed on that, i can separate out the first part and the post code with a find and replace but not the middle.

also i need it to work backwards ie

it finds the post code first,

then the county

then the town

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May 27, 2014

User form data entry.

I need to save the data of For Eg. A form in Sheet 1, B form in Sheet 2, C form data entry in sheet 3.

what is happening now is that, all the entries are going in the Active Sheet that is open in the excel file. I want to automate the process of data entry, by making it enter data from specific form in specific sheet.

1st form

Code:
Private Sub CommandButton1_Click()
eRow = Sheet1.Cells(Rows.Count, 1).End(xlUp).Offset(1, 0).Row
Cells(eRow, 1) = ComboBox1.Text
Cells(eRow, 2) = TextBox12.Text
Cells(eRow, 3) = TextBox2.Text
Cells(eRow, 4) = TextBox3.Text
Cells(eRow, 5) = TextBox4.Text

Unload Me
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End With
End Sub
2nd form

Code:
Private Sub CommandButton1_Click()
eRow = Sheet2.Cells(Rows.Count, 1).End(xlUp).Offset(1, 0).Row
Cells(eRow, 1) = ComboBox1.Text
Cells(eRow, 2) = TextBox14.Text
Cells(eRow, 3) = TextBox2.Text
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Cells(eRow, 5) = TextBox4.Text
Unload Me
ThisWorkbook.Save
End Sub

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The way that I'm imagining e2 would behave in the example would be...type a 1 then enter....18 then enter....31 then enter and so on. Columns f thru bm would locked and unselectable....so a tab should send me back to a3.

Reasoning.... this is a simple scoring system based on 60 codes and data integrity is very important and I want to eliminate as much human error as possible. I will be setting autofilters and such later on.

I am attaching a screencapture as well.

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3.I do not know much about VBA but I believe that I will need a macro for each sheet that fills in the word.

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Tab 2, Column A, has Unique ID's (6 digit numeric values)

The user manually inputs the ID's on new rows in Column A

Row 1 is reserved and in use for something else
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When the user inputs a new ID into cell A624, then they return to Tab 1, I want my formula/alert on Tab 1 to tell the user that they have duplicates in Column A of tab 2. I know the Conditional Formatting, but if the user copies in 100 new values, they won't necessarily see the highlighted cells. My tab 1 is my "checks and balances" and the last place the user is suppposed to look to ensure that they haven't created any duplicate ID's. If the user sees a warning message that says duplicates exist, then I'll tell them that they need to look at column A (for cells that have been conditionally highlighted).

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s70
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abd
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VB:
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[Code] .....

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