# Introducing Mappers

### Release V2023.05.16

* Introducing [Mappers](https://api-docs.everreal.co/how-to-guide/everreal-data-import-process/import-mappers) for ERP integrations.

**Deprecation Warnings**

Part of cleaning our graphQL we are planing to deprecate following keys from our graphQL endpoints by Oct 2023

* Owner Module

  ```graphql
  raw: RawInput @deprecated(reason: "raw is deprecated. Use meta instead with a source.")
  externalId: String @deprecated(reason: "externalId is deprecated. Use externalOwnerId instead.")
  street: String @deprecated(reason: "street is deprecated. Use address.streetName instead.")
  number: String @deprecated(reason: "number is deprecated. Use address.streetNumber instead.")
  zipCode: String @deprecated(reason: "zipCode is deprecated. Use address.zipCode instead.")
  city: String @deprecated(reason: "city is deprecated. Use address.city instead.")
  country: String @deprecated(reason: "country is deprecated. Use address.country instead.")
  ```
* Property Module

  ```graphql
  raw: PropertyRawInput @deprecated(reason: "raw is deprecated. Use meta instead with a source.")
  objectId: String @deprecated(reason: "objectId is deprecated. Use externalPropertyId instead.")
  owner: PropertyOwnerInput @deprecated(reason: "owner is deprecated. Use ownerId instead.")
  street: String @deprecated(reason: "address.street is deprecated. Use address.streetName instead.")
  number: String @deprecated(reason: "address.number is deprecated. Use address.streetNumber instead.")
  zip: String @deprecated(reason: "address.zip is deprecated. Use address.zipCode instead.")
  ```
* Unit Module

  ```graphql
  raw: PropertyRawInput @deprecated(reason: "raw is deprecated. Use meta instead with a source.")
  unitId: String @deprecated(reason: "unitId is deprecated. Use externalUnitId instead.")
  objectId: String @deprecated(reason: "objectId is deprecated. Use externalUnitId instead.")
  propertyObjectId: String @deprecated(reason: "propertyObjectId is deprecated. Use externalPropertyId instead.")
  floorNumber: Float @deprecated(reason: "floorNumber is deprecated. Use floorNo instead.")
  ```
* Tenant Module

  ```graphql
  raw: PropertyRawInput @deprecated(reason: "raw is deprecated. Use meta instead with a source.")
  externalId: String @deprecated(reason: "externalId is deprecated. Use externalTenantId instead.")
  nameOfTheUnit: String @deprecated(reason: "nameOfTheUnit is deprecated.")
  objectName: String @deprecated(reason: "objectName is deprecated.")
  startOfLease: String @deprecated(reason: "startOfLease is deprecated. Use contractStartDate instead.")
  endOfContract: String @deprecated(reason: "endOfContract is deprecated. Use contractEndDate instead.")
  ```
* Listing Module

  ```graphql
  availableFrom: Date @deprecated(reason: "ListingInformation.availableFrom will be moved to the main level.")
  ```