In the 237th episode of Semantic Mastery's weekly Hump Day Hangouts, one participant asked about the best way to keep up the rankings if you need to change the phone number of a GMB listing.
The exact question was:
Hey guys i need to change the Telefonnumber of my GMB. What is the best way to keep up the GMB rankings: 1. Only delete the old Number and add the new Number in my RYS Stack. OR 2. Adding the new Number and keeping also the old Number in my RYS Stack