Atlas Index Creation

MongoDB Atlas
1

{
“mappings”: {
“dynamic”: true,
“fields”: {
“AreaOfExpertises”: {
“type”: “embeddedDocuments”,
“fields”: {
“ExpertiseId”: {
“type”: “number”
},
“Duration”: {
“type”: “number”
}
}
},
“UpdatedOnSql”: {
“type”: “date”
},
“DateOfBirth”: {
“type”: “date”
},
“TotalExperience”: {
“type”: “number”
},
“PreferredJobCategories”: {
“type”: “array”,
“items”: {
“type”: “number”
}
},
“Category”: {
“type”: “number”
},

  "PresentAddressIds": {
    "type": "array",
    "items": {
      "type": "number"
    }
  },
  "PermanentAddressIds": {
    "type": "array",
    "items": {
      "type": "number"
    }
  },
 "PreferredLocation": {
    "type": "array",
    "items": {
      "type": "number"
    }
  },

“SkillInformationIds”: {
“type”: “array”,
“items”: {
“type”: “number”
}
},
“OrganizationType”: {
“type”: “array”,
“items”: {
“type”: “string”
}
}

}

}
}

Here I have 3 Arrays. Wanted to create an Index but failed. What can I do?