Research involves verifying the data through an official source or 2 unofficial sources. Clearly unreliable sources should not be considered at all. Note: unlike in the Search guidelines, we should use 2 reliable resources to confirm the address of listed businesses with no official online presence (i.e official website or claimed social media)
Use official resources like businesses’ official websites, national postal service websites, and government websites whenever possible (Guidelines section 2.1.1)
If you can’t verify the data correct or incorrect, rate Can’t Verify.
To give you some guidance, please see below some of the resources that Analysts from Portugal (pt_PT) market have reported to be helpful when performing research:
Helpful Map Applications:
10.2)
Query example: [3 Rua 25 de Abril] with User within FVP in Baixa Lisboa
HERE WeGo usually provides a more complete selection of nearby results than
Google Maps or Bing Maps: https://tinyurl.com/44mkx7bp
Helpful resources to research Name Accuracy
‘^.• Street imagery (Store fronts)
Helpful resources to research Address Accuracy
Helpful resources to research Pin Accuracy