Hi Nelson and welcome to Excel Forum,
You were very close to a solution. The keys are understanding how Excel 'Find' works, which can at times be difficult at best, and understanding how Excel stores Dates and Times and Date/Time combinations.
You did several things correctly including:
a. Use of 'Option Explcit'
b. Creating the Concatenation in Column 'AB'.
See the following macro which is included in the attached sample file. The macro is triggered by the ' Check Employees with same Departure Details' CommandButton, the same as you did. My test data in the 'Input Sheet' may be in the wrong cells, if I misunderstood what certain fields were supposed to be.
Do not use my file except for test purposes, as I commented out some things that cleared the Input Sheet.
In ordinary Code module modDeparture:
Lewis
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