Google Sheets Pattern Matching/RegEx for COUNTIF

Question

The documentation for pattern matching for Google Sheets has not been helpful. I\'ve been reading and searching for a while now and can\'t find this particular issue. Maybe I\'m

Answer 1

As you identified and Wiktor mentioned COUNTIF only supports wildcards.

There are many ways to do what you want though, to name but 2

=ArrayFormula(SUM(--REGEXMATCH(E9:E13, "50-03[123][012]*")))

=COUNTA(FILTER(E9:E13, REGEXMATCH(E9:E13, "50-03[123][012]*")))