> For the complete documentation index, see [llms.txt](https://developers.pipelinersales.com/api-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.pipelinersales.com/api-docs/core-api-concepts/bulk-create-update-delete.md).

# Bulk Create, Update, Delete

It is recommended to use Bulk Create, Update, Delete methods when working with a lot of data at once.

| Operation Name | Endpoint        |
| -------------- | --------------- |
| Create, Update | .\*batch-modify |
| Delete         | \*.batch-delete |

### Bulk Create, Update

Coevera API supports creating, updating records in one `*.batch-modify`request

1. When the `ID` is specified in an object, it works as **an update method**
2. When the `ID` is not specified in an object, it works as **a create method**

**Snippet**

```
POST /entities/{{Entity-name}}/batch-modify
[
    {"id": "123", "name": "update"}, 
    {"name": "create"}
]
```

### Using Rollback for Bulk operations

Rollback is [API parameter](/api-docs/core-api-concepts/api-parameters.md)**,** that can help you to rollback data that has failed for some reason (eg. data became invalid).

**Example**

In this example, we are going to bulk update Accounts, with the rollback method turned on.

**Rollback = 0**

If at least one object in a request is invalid, any operation isn´t executed (all data are rollbacked)

```
POST {{baseUrl}}/entities/Accounts/batch-modify?rollback-method=0
[
    {
        "id": "0bc376a4-c579-413a-9221-e86e4a134766",
        "name": "Account - Updated"
    },
    {
        "name": "Account - Created"
    }
]
```

```json
{
    "code": 40000,
    "name": "ERROR_ENTITY_VALIDATION",
    "message": "\n[owner_id] Relation Account.owner_id=00000000-0000-0000-0000-000000011a3d to Client doesn't exist!",
    "entity_id": "0bc376a4-c579-413a-9221-e86e4a134766",
    "entity_name": "Account",
    "entity_errors": [],
    "field_errors": [
        {
            "field_id": "5b67c561-0136-0c86-9dc0-0b4c9acb42f5",
            "field_name": "owner_id",
            "name": "ERROR_FIELD_VALIDATION",
            "code": 40002,
            "errors": [
                {
                    "code": 120,
                    "name": "ERROR_RELATIONS_DOESNT_EXIST",
                    "message": "[owner_id] Relation Account.owner_id=00000000-0000-0000-0000-000000011a3d to Client doesn't exist!",
                    "field_id": "5b67c561-0136-0c86-9dc0-0b4c9acb42f5",
                    "field_name": "owner_id"
                }
            ]
        }
    ],
    "step_checklist_errors": [],
    "entity_index": null,
    "http_status": 422,
    "success": false
}
```

**Rollback=1**

If an object in a request is invalid, it is not saved but other valid records are saved successfully. If the error occurs it is then returned in a response

```
POST {{baseUrl}}/entities/Accounts/batch-modify?rollback-method=1
[
    {
        "id": "0bc376a4-c579-413a-9221-e86e4a134766",
        "name": "Account - Updated"
    },
    {
        "name": "Account - Created",
        "owner_id": "00000000-0000-0000-0000-000000011a7d"
    }
]
```

```json
{
    "success": false,
    "data": [
        {
            "code": 40000,
            "name": "ERROR_ENTITY_VALIDATION",
            "message": "\n[owner_id] Relation Account.owner_id=00000000-0000-0000-0000-000000011a3d to Client doesn't exist!"
        },
        "f75fc63f-8c6f-499e-b9d2-ff16bcefdd83"
    ]
}
```


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