Hi,
I want to run an operation, but, this may have already been done, so i
need to notify user of that and not run again.

Specifically:
I need to search the 'Entry Log' sheet (columns A and B) for the word
'Enzyme' in column A, and a specific six digit number in column B (the
number is already defined as variable req1). These two entries must
be found adjascent to each other, in order for the find/match to be
true.

Example:
req1 is currently 123456

So, in order for my macro to continue, I want to search the sheet
'Entry Log' for the word 'Enzyme' in column A and 123456 in column B
(adjascent). If it does not find, the macro continues. If it does
find that match, say in range A26:B26, then a message to user appears
that data has already been entered, etc... and then exits.

Note: The Entry Log sheet Column A will have either the word Enzyme,
or Strip, or Error. Column B will have many different six digit
numbers.

Thanks for any assistance,
Steve