Formula help. INDEX MATCH???

MCallan1

New Member
Joined
Mar 1, 2016
Messages
3
Hi

I am trying to find the closest contact date after a given referral date. It is based on a specific ID for each person. As you can see below, the sample I am trying to work it out for is all for one ID. I need a formula to brink back the first Contact Date AFTER the referral date which in this case is:

Ref date: 19/07/2015 04:21

I have added the column of referral date minus the contact date and if this is used, it will need to be the MAX of the negative values.

Any help would be very much appreciated.
ID</SPAN>Contact Dates</SPAN>Ref date-Contact Date</SPAN>
813013</SPAN>08/07/2015 21:10</SPAN>10.29930556</SPAN>
813013</SPAN>10/07/2015 13:31</SPAN>8.618055556</SPAN>
813013</SPAN>19/07/2015 17:40</SPAN>-0.554861111</SPAN>
813013</SPAN>20/07/2015 12:00</SPAN>-1.31875</SPAN>
813013</SPAN>30/07/2015 11:10</SPAN>-11.28402778

</SPAN>

<TBODY>
</TBODY><COLGROUP><COL><COL span=2></COLGROUP>
 

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steve the fish

Well-known Member
Joined
Oct 20, 2009
Messages
8,245
Office Version
  1. 365
Platform
  1. Windows
This will work. Placing your table in A1:B6 (you don't really need the other column) then place the ID in D1 and the referall date in D2:

=MIN(IF($A$2:$A$6=$D$1,IF($B$2:$B$6>$D$2,$B$2:$B$6)))

Enter CNTL-SHIFT-ENTER
 

MCallan1

New Member
Joined
Mar 1, 2016
Messages
3
This helps for the sample I provided, thanks. I need to feed this into my much bigger spreadsheet that will have a large number of IDs and changing referral dates. It also wont be a definite number of contact dates as there could be any number of dates coming through in my report. Do you know how to do the same thing for much bigger quantities of data?
 

steve the fish

Well-known Member
Joined
Oct 20, 2009
Messages
8,245
Office Version
  1. 365
Platform
  1. Windows
That will do any length of data provided you change the ranges.
 

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