## Merge two custom object records

`client.Merge.MergeObjectValues(ctx, entitySlug, body) (*MergeMergeObjectValuesResponse, error)`

**post** `/v1/objects/{entitySlug}/merge`

Merges two records of the specified custom object type into one. The primary record retains its ID; the duplicate is soft-deleted. Both records must belong to the custom object type named in the path.

**[Required scopes](/using-the-api/scopes/):** `custom_objects:update` + `custom_objects:delete`

**[Rate limit category](/using-the-api/rate-limits/):** Write

### Parameters

- `entitySlug string`

  The slug of the custom object type.

- `body MergeMergeObjectValuesParams`

  - `DuplicateID param.Field[string]`

    ID of the duplicate record to merge into the primary and then discard.

  - `PrimaryID param.Field[string]`

    ID of the record to keep.

  - `FieldResolutions param.Field[map[string, MergeMergeObjectValuesParamsFieldResolutionUnion]]`

    Per-field resolution overrides keyed by attribute slug.

    - `type MergeMergeObjectValuesParamsFieldResolutionString string`

      - `const MergeMergeObjectValuesParamsFieldResolutionStringPrimary MergeMergeObjectValuesParamsFieldResolutionString = "primary"`

      - `const MergeMergeObjectValuesParamsFieldResolutionStringDuplicate MergeMergeObjectValuesParamsFieldResolutionString = "duplicate"`

    - `type MergeMergeObjectValuesParamsFieldResolutionValue struct{…}`

      - `Value MergeMergeObjectValuesParamsFieldResolutionValueValueUnion`

        - `string`

        - `float64`

        - `bool`

        - `type MergeMergeObjectValuesParamsFieldResolutionValueValueArray []string`

        - `type MergeMergeObjectValuesParamsFieldResolutionValueValueAddress struct{…}`

          - `City string`

            City name.

          - `Country string`

            2-letter ISO 3166-1 alpha-2 country code.

          - `Latitude float64`

            Latitude coordinate.

          - `Longitude float64`

            Longitude coordinate.

          - `PostalCode string`

            Postal or ZIP code.

          - `State string`

            State or province.

          - `Street string`

            Street address line 1.

          - `Street2 string`

            Street address line 2.

        - `type MergeMergeObjectValuesParamsFieldResolutionValueValueFullName struct{…}`

          - `FirstName string`

            The contact's first name.

          - `LastName string`

            The contact's last name.

  - `Options param.Field[MergeMergeObjectValuesParamsOptions]`

    - `MultiSelectUnion bool`

      When true, multi-select fields are merged by union rather than primary-takes-all.

### Returns

- `type MergeMergeObjectValuesResponse struct{…}`

  - `Merge MergeMergeObjectValuesResponseMerge`

    - `ID string`

      Unique identifier for the merge operation.

    - `Status string`

      Current status of the merge: `cleanup_pending`, `done`, or `failed`.

  - `Primary MergeMergeObjectValuesResponsePrimary`

    - `ID string`

      Unique identifier for the entity.

    - `CreatedAt string`

      ISO 8601 timestamp of when the entity was created.

    - `Fields map[string, MergeMergeObjectValuesResponsePrimaryField]`

      Map of field names to their typed values. System fields are prefixed with `$` (e.g. `$name`, `$email`); custom attributes use their bare slug.

      - `Value MergeMergeObjectValuesResponsePrimaryFieldValueUnion`

        The field value, or null if unset.

        - `string`

        - `float64`

        - `bool`

        - `type MergeMergeObjectValuesResponsePrimaryFieldValueArray []string`

        - `type MergeMergeObjectValuesResponsePrimaryFieldValueAddress struct{…}`

          - `City string`

            City name.

          - `Country string`

            2-letter ISO 3166-1 alpha-2 country code.

          - `Latitude float64`

            Latitude coordinate.

          - `Longitude float64`

            Longitude coordinate.

          - `PostalCode string`

            Postal or ZIP code.

          - `State string`

            State or province.

          - `Street string`

            Street address line 1.

          - `Street2 string`

            Street address line 2.

        - `type MergeMergeObjectValuesResponsePrimaryFieldValueFullName struct{…}`

          - `FirstName string`

            The contact's first name.

          - `LastName string`

            The contact's last name.

      - `ValueType string`

        The data type of the field.

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeAddress MergeMergeObjectValuesResponsePrimaryFieldValueType = "ADDRESS"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeCheckbox MergeMergeObjectValuesResponsePrimaryFieldValueType = "CHECKBOX"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeCurrency MergeMergeObjectValuesResponsePrimaryFieldValueType = "CURRENCY"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeDatetime MergeMergeObjectValuesResponsePrimaryFieldValueType = "DATETIME"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeEmail MergeMergeObjectValuesResponsePrimaryFieldValueType = "EMAIL"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeFullName MergeMergeObjectValuesResponsePrimaryFieldValueType = "FULL_NAME"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeMarkdown MergeMergeObjectValuesResponsePrimaryFieldValueType = "MARKDOWN"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeMultiSelect MergeMergeObjectValuesResponsePrimaryFieldValueType = "MULTI_SELECT"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeNumber MergeMergeObjectValuesResponsePrimaryFieldValueType = "NUMBER"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeSingleSelect MergeMergeObjectValuesResponsePrimaryFieldValueType = "SINGLE_SELECT"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeSocialHandle MergeMergeObjectValuesResponsePrimaryFieldValueType = "SOCIAL_HANDLE"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeTelephone MergeMergeObjectValuesResponsePrimaryFieldValueType = "TELEPHONE"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeText MergeMergeObjectValuesResponsePrimaryFieldValueType = "TEXT"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeURL MergeMergeObjectValuesResponsePrimaryFieldValueType = "URL"`

        - `const MergeMergeObjectValuesResponsePrimaryFieldValueTypeHTML MergeMergeObjectValuesResponsePrimaryFieldValueType = "HTML"`

    - `HTTPLink string`

      URL to view the entity in the Lightfield web app, or null.

    - `Relationships map[string, MergeMergeObjectValuesResponsePrimaryRelationship]`

      Map of relationship names to their associated entities. System relationships are prefixed with `$` (e.g. `$owner`, `$contact`).

      - `Cardinality string`

        Whether the relationship is `has_one` or `has_many`.

      - `ObjectType string`

        The type of the related object (e.g. `account`, `contact`).

      - `Values []string`

        IDs of the related entities.

    - `UpdatedAt string`

      ISO 8601 timestamp of when the entity was last updated, or null.

    - `ExternalID string`

      External identifier for the entity, or null if unset.

  - `Summary MergeMergeObjectValuesResponseSummary`

    - `FieldWriteCount int64`

      Number of attribute fields written onto the primary record.

    - `SyncRepointedCount int64`

      Number of related records re-pointed from the duplicate to the primary.

    - `Warnings []string`

      Non-fatal warnings from the merge (e.g. skipped transfers).

### Example

```go
package main

import (
  "context"
  "fmt"

  "github.com/Lightfld/lightfield-go"
  "github.com/Lightfld/lightfield-go/option"
)

func main() {
  client := githubcomlightfldlightfieldgo.NewClient(
    option.WithAPIKey("My API Key"),
  )
  mergeMergeObjectValuesResponse, err := client.Merge.MergeObjectValues(
    context.TODO(),
    "entitySlug",
    githubcomlightfldlightfieldgo.MergeMergeObjectValuesParams{
      DuplicateID: "duplicateId",
      PrimaryID: "primaryId",
    },
  )
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", mergeMergeObjectValuesResponse.Merge)
}
```

#### Response

```json
{
  "merge": {
    "id": "id",
    "status": "status"
  },
  "primary": {
    "id": "id",
    "createdAt": "createdAt",
    "fields": {
      "foo": {
        "value": "string",
        "valueType": "ADDRESS"
      }
    },
    "httpLink": "httpLink",
    "relationships": {
      "foo": {
        "cardinality": "cardinality",
        "objectType": "objectType",
        "values": [
          "string"
        ]
      }
    },
    "updatedAt": "updatedAt",
    "externalId": "externalId"
  },
  "summary": {
    "fieldWriteCount": -9007199254740991,
    "syncRepointedCount": -9007199254740991,
    "warnings": [
      "string"
    ]
  }
}
```