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Celonis Product Documentation

Amazon S3 connection

Steps to set up a S3 data connection

Step 1: Configure a user with sufficient permissions in S3

An Access Key and Access Secret can be created in the following way:

  • Go to your Account in AWS

  • Select My Security Credentials

  • Select Access keys (access key ID and secret access key) section.

  • Click on Create New Access Key:If you select Create New Access Key, download the Key pairs to your system for future use. Click on Show Access key and you will get your Access Key ID and Secret Access Key

  • At minimum the following bucket-guideline needs to be set up on bucket level to access the respective data:

    "Version": "2008-10-17",
    "Statement": [
    "Effect": "Allow",
    "Principal": {
    "Service": ""
    "Action": [
    "Resource": [


    When writing files to the S3 bucket from an external application, also the following permissions need to be enabled: "ACL": "bucket-owner-full-control

Step 2: Allowlist EMS IP addresses


Follow this step only if your system is IP-blocked.

If your system is only reachable within a certain IP range, you need to allowlist the outbound IPs of the EMS, otherwise data cannot be extracted. The IPs of the EMS are different depending on the cluster (eu-1 or us-1). For the list of clusters and their IP addresses, see Allowlisting Celonis IP addresses.

Step 3: Create a Data Connection in a Data Pool
  1. Enter the name of the new S3 Data Connection.

  2. Enter the AWS region on which your bucket is hosted

  3. Choose the bucket from which you want to extract

  4. Enter the Access Key ID

  5. Specify the Access Key Secret

Data Access

The Celonis Extractor performs read-only operations on your S3 bucket. No writing changes (like updates, and deletions) will be performed at any time during the extraction process.


Transfer of the data from S3 to the target system is secured through HTTPS, which allows for an encrypted exchange of information.

Used API

In order to send requests to S3 and receive a response and data, the Amazon S3 SDK is used:

Notes and troubleshooting
  • Supported file types are csv, json, parquet.

  • Currently, only full loads are supported.

  • When extracting folders from an S3 bucket it needs to be ensured that the metadata of the files in the folder stays consistent.