Changed customer name after save

when i save a customer for some particular names I’m getting these Note. how to get rid of these Note or how to hide it

@anjalipv you might be following naming setting of customer as customer_name and not based on naming_series, and duplicate name can not be allowed for customer primary key.

if there is a case that you might have customer with same names, you can create it like Anjali-Cityname/ownername etc or use setting like

Selling Settings > Customer Naming By > Naming Series.

i already did this naming series is customer_name - mobile_number. doc is getting saved by this but im getting this pop up msg when i save