---
title: "Batch create ProcedureMethodExecutionInstanceAssociation"
method: POST
path: "/api/v3/procedure-method-execution-instance-association:batch-create"
tags: ["Procedure Method Execution Instance Association"]
---

# Batch create ProcedureMethodExecutionInstanceAssociation

`POST /api/v3/procedure-method-execution-instance-association:batch-create`

## Request

- Base URL: `https://{tenant_name}.benchling.com`
- URL: `https://{tenant_name}.benchling.com/api/v3/procedure-method-execution-instance-association:batch-create`
- Auth: HTTP bearer

Batch create ProcedureMethodExecutionInstanceAssociation synchronously in one transaction. Maximum 25 items per request.

## Headers

- `EARLY-ACCESS` string

## Request body

- object
  - `items` ProcedureMethodExecutionInstanceAssociationUpsert[], required
    - `sourceProcedureMethodExecutionInstanceId` string, required
    - `targetProcedureMethodExecutionInstanceId` string, required

## Response `201`

Created

- ProcedureMethodExecutionInstanceAssociationBatchcreateResponse201
  - `items` ProcedureMethodExecutionInstanceAssociation[], required
    - `__typename` string
    - `archiveReason` string, nullable
    - `archived` boolean
    - `createdAt` string, datetime
    - `id` string
    - `modifiedAt` string, datetime
    - `sourceProcedureMethodExecutionInstance` ProcedureMethodExecutionInstanceRef
      - `__typename` string
      - `id` string, api_id
    - `targetProcedureMethodExecutionInstance` ProcedureMethodExecutionInstanceRef
      - `__typename` string
      - `id` string, api_id

## Other responses

- `400`: Bad Request
- `403`: Forbidden
- `404`: Not Found
- `409`: Conflict
- `429`: Too Many Requests
- `500`: Internal Server Error

---

[API](https://skmtc.dev/benchling/apis/benchling-api.md) - [All operations](https://skmtc.dev/benchling/apis/benchling-api/llms.txt) - [OpenAPI document](https://skmtc.dev/benchling/apis/benchling-api/revisions/c9f087b98b8b?raw)