This document provides a summary of a reconciliation code in MS Excel and VBA that compares two datasets using the sumproduct function. The reconciliation tool standardizes data from two worksheets, combines them into a new table, removes duplicates, uses sumproduct to compute aggregated quantities for unique values in each dataset, calculates differences between the datasets, locates specific clients using VLOOKUP, and highlights differences with conditional formatting. The key aspect is recording a macro when typing the sumproduct formula to compare the datasets.