So I changed my website's URL structure for product pages from /products-services/xyz to /solutions/xyz and redirected the old URLs to the new ones. Note: The domain has not changed.
However, I did not realize in Google Analytics that historical metrics from /products-services pages would not be compared to the new URL. This makes it impossible to compare month to month or year to year performance for specific product pages.
How can I tell Google to combine the metrics for these product pages? The only thing changed was the URL structure to "solutions".