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can a VLookup include "Exclude roll forward if weekend dates returned"

Posted on 2014-09-25
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Last Modified: 2014-09-25
Can an expert resolve this for me.

I am using a VLookup i.e.:

=IF(ISERROR(VLOOKUP(A2,Nov!D:I,6,0)),"",(VLOOKUP(A2,Nov!D:I,6,0)))

But if the date it returns is a weekend I need it to to be rolled forward to the next working day i.e. Monday

so if the date it returns is 27/9/14 I need it to change to 29/9/14

if the date it returns is 28/9/14 I need it to change to 29/9/14

Is this possible

Thanks
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Question by:Jagwarman
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Accepted Solution

by:
Phillip Burton earned 500 total points
ID: 40343463
Assuming you have Excel 2007 or greater, you can use IFERROR(A1,""), instead of IF(ISERROR(A1),"",A1) - it's quicker.

Here's the answer:

=IFERROR(VLOOKUP(A2,Nov!D:I,6,0)+CHOOSE(WEEKDAY(VLOOKUP(A2,Nov!D:I,6,0),1),1,0,0,0,0,0,2),"")

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Author Comment

by:Jagwarman
ID: 40343468
wow that was a fast reply. Brilliant I would never have worked that out thanks Phillip
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Author Closing Comment

by:Jagwarman
ID: 40343471
Very helpfull Expert.
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Author Comment

by:Jagwarman
ID: 40343904
Phillip,

sorry to trouble you again on this one but, when the VLookup does it's work, if the field it looks up is blank it is returning 02/01/1900

I thought that IFERROR would stop that?

Thanks & Regards
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LVL 24

Expert Comment

by:Phillip Burton
ID: 40343908
No, "IFERROR" or "IF(ISERROR" will only return a blank if there is an error.

If column I is nullable, then VLOOKUP will return a zero (instead of a blank value), and you need to check for it:

=IFERROR(if(VLOOKUP(A2,Nov!D:I,6,0)=0,"",VLOOKUP(A2,Nov!D:I,6,0)+CHOOSE(WEEKDAY(VLOOKUP(A2,Nov!D:I,6,0),1),1,0,0,0,0,0,2)),"")

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Author Comment

by:Jagwarman
ID: 40343948
sorry I have another problem now

The date it is looking up is 17/11/2014 which is a Monday but it is returning 19/11/2014

Would you know why?
0
 
LVL 24

Expert Comment

by:Phillip Burton
ID: 40343955
It isn't for me. Are you sure that there isn't an earlier version of the thing that it is looking up, which has an earlier date?
0
 

Author Comment

by:Jagwarman
ID: 40343974
this is going to be one of those bizzare things. I have played around with the dates but can't resolve
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LVL 24

Expert Comment

by:Phillip Burton
ID: 40343977
Do you want to post your spreadsheet, or is it confidential?
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Author Comment

by:Jagwarman
ID: 40344003
it was me, sorry and BIG thanks for your help

instead of D:I,6,0   D:I,6,0   D:I,6,0

I somehow put

D:I,6,0   D:I,6,0   D:I,7,0
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