Error: Private Link Type AWS_PRIVATE_LINK Is Not Supported

Issue

When using Terraform to set up a MongoDB connection with AWS PrivateLink, the following error appears:

status code: 400; code: InvalidInput; message: Private link type AWS_PRIVATE_LINK is not supported by connector service.

Environment

• Connector: MongoDB
• Infrastructure-as-Code: Terraform
• Connection method: AWS PrivateLink

Resolution

To resolve this issue, don’t use self-service AWS PrivateLink settings for MongoDB connections hosted on AWS.

For MongoDB connectors hosted on AWS, use the following Terraform settings:

• Set connection_type = "Directly".
• Set hosts to your MongoDB host URL. For example: mongodb+srv://example.mongodb.net/?retryWrites=true&w=majority...
• Set private_link_id = "".
• Don't set connection_type = "PrivateLink" or specify a private_link_id for MongoDB connections on AWS.

If the customer-side networking is already provisioned, Fivetran automatically detects the existing AWS PrivateLink during connection setup.

This guidance applies only to MongoDB connections on AWS. For connectors that support self-service AWS PrivateLink, such as PostgreSQL or MySQL, continue to set connection_type = "PrivateLink" and specify private_link_id.

Cause

This issue occurs when you use connection_type = "PrivateLink" with a MongoDB connection on AWS. Fivetran doesn't support self-service AWS PrivateLink for MongoDB. Attempting to use connection_type = "PrivateLink" or specifying private_link_id for unsupported connectors such as MongoDB results in the above error.

For more information, see AWS PrivateLink setup instructions for self-service Fivetran accounts.