Check your Junk/Bin folders. Also check with your administrator if your email server is blocking our emails. If the email is not there send us a message via our Contact or Support page. If possible provide an alternative email address as well.

Both applications require active internet connection.
SumMatch Web does not require any installation or administration rights or Excel and Windows installed but be sure that you have copy and paste enabled in your browser.

There may be a few different reasons for SumMatch add-in not finding matching combinations of numbers.
First make sure that the data in your Excel spreadsheet is what you expect it to be - often the spreadsheet data display is formated for users' viewing and the underlying data has slightly different values that the data displayed.
For example, if you formatted your numbers to display 2 decimal places, where you see 4.32 there may be more decimal places in the cell, for example 4.31999999999971. In this case you could round the numbers to the value you want using the ROUND Excel formula and then run SumMatch for the rounded values. Alternatively you could use the tolerance of 0.005 or whatever is the desired tolerance for your data. In general remember that the more significant digits your data has the more difficult it is to find matching combinations.
Another reason SumMatch Pro/Web may not find solutions is the difficulty level of the problem. Some data sets are difficult to solve. In this case it may help to use a different order for your results and/or limit the input data to a smaller subset.