ContactPage Schema Example Template for Local SEO

ContactPage-Schema.jsonld

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "ContactPage",
  "mainEntityOfPage": {
    "@type": "WebPage",
    "@id": "{{CONTACT PAGE URL}}"
  },
  "publisher": {
    "@type": "LocalBusiness",
    "@id": "{{WEBSITE URL}}",
    "name": "{{BUSINESS NAME}}",
    "logo": "{{LOGO URL}}",
    "telephone": "{{PHONE NUMBER}}",
    "email": "{{EMAIL ADDRESS}}",
    "sameAs": [
      "{{URL #1}}",
      "{{URL #2}}"
    ],
    "url": "{{WEBSITE URL}}",
    "image": "{{IMAGE URL}}",
    "description": "{{BUSINESS DESCRIPTION}}",
    "address": {
      "@type": "PostalAddress",
      "streetAddress": "{{STREET ADDRESS}}",
      "addressLocality": "{{CITY}}",
      "addressRegion": "{{STATE ABBREVIATION}}",
      "postalCode": "{{ZIP CODE}}"
    }
  }
}
</script>

what is the url #1 & url #2 means here?

Primarily links to the same entity such as: Facebook, Yelp, Crunchbase, Wikipedia, etc.