POWER USER PRO TIP

Many-to-Many Relationships

For those of you looking to really master lookup/reference functions, here’s a challenge: in cases where you have multiple matching values between tables, how can you tell Excel to return the last match, rather than the first?

In this tip, we’ll explore one solution using a combination of INDEX, MATCH, and COUNTIF functions.

COMMON USE CASES:

  • Handing non-traditional table relationships or complex matches
  • Tracking historical changes within a lookup table (i.e. product prices or store addresses that may have changed at one point in time)

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