SharePoint Column Validation

[SXT3410]

Hello SP community,

I want to validate that the users select either "Pre", or "Post" choice if they selected Yes to a previous column.

I've created two a choice column, one is a Yes/No choice, and the other is "Pre" or "Post". When a user selects "Yes" in the first column I want to validate that they also select either "Pre", or "Post" in the following column. If they selected No, then they aren't required to select "Pre" or "Post".

I am not sure if this is possible or maybe there is another solution rather than using column validation? I was thinking a calculated column, but they have two choices after selecting "Yes". 

Thank you!

[#2]

@SXT3410 This is possible using List validation settings. You can use formula like: 

=IF([Column 1] = "Yes", OR([Column 2] = "Pre", [Column 2] = "Post"), TRUE)

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[#3 · Accepted solution]

@SXT3410 

Note: You have to add this formula in List validation settings and not column validation settings.

Follow below steps:

1. Go to SharePoint list
2. Click on Settings icon and select List settings
3. Select Validation settings
4. Add formula & user message and click Save

Reference: List validation if then syntax 

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[#4]

I tested the formula, and it works as intended! Thank you also for the note @ganeshsanap, I wasn't aware of the validation setting. 

[#5]

@ganeshsanap hello can you also help me, the column is budget needed? Yes/No, if user select yes the  they need to input the budget amount in the column Value.

I tried this formula but I’m having error

=IF(Budget Needed="Yes",IF([Value]<>"",TRUE,FALSE),TRUE)

[#6]

@Melow28 Is your "Budget Needed" of  column type "Choice" or "Yes/No" (Boolean)?

Try using formula like: 

=IF([Budget Needed]="Yes",IF(ISBLANK([Value]),FALSE,TRUE),TRUE)

Make sure to use the correct display names of your list columns in formula. Also, check above responses/Notes for more understanding.

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[#7]

@ganeshsanap thanks for the tip, I tried it but I'm having error. What I would like to have is if someone selected Budget Shift is needed "Yes" , then they will be required to input in the Euro Value column the amount , but if they select "No"  in column Budget Shift is needed, then they will not be required to input amount in the Euro Value column

[#8]

@Melow28 

You have to make your "Euro Value" column non-mandatory as mentioned here: Conditional field as per option selected 

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