EC2 InvalidVpcEndpointConnectionID.NotFound error encountered when attempting to manage VPC endpoint connections.

The specified VPC endpoint connection ID does not exist or is incorrect.

Understanding Amazon EC2 and VPC Endpoints

Amazon Elastic Compute Cloud (EC2) is a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale cloud computing easier for developers. A Virtual Private Cloud (VPC) allows you to launch AWS resources into a virtual network that you've defined. VPC endpoints enable you to privately connect your VPC to supported AWS services and VPC endpoint services powered by AWS PrivateLink without requiring an Internet gateway, NAT device, VPN connection, or AWS Direct Connect connection.

Identifying the Symptom

When working with VPC endpoints, you might encounter the error code InvalidVpcEndpointConnectionID.NotFound. This error typically occurs when you attempt to describe, modify, or delete a VPC endpoint connection using an incorrect or non-existent connection ID.

Common Scenarios

  • Attempting to delete a VPC endpoint connection that has already been removed.
  • Using an outdated or incorrect VPC endpoint connection ID in your API calls.

Exploring the Issue

The InvalidVpcEndpointConnectionID.NotFound error indicates that the VPC endpoint connection ID you specified does not exist. This can happen if the ID is mistyped, the connection has been deleted, or if you are querying the wrong region.

Why This Happens

VPC endpoint connection IDs are unique identifiers for each connection. If you attempt to reference a connection ID that AWS cannot find, it will return this error. This can be due to:

  • Typographical errors in the connection ID.
  • Attempting to access a connection in a different AWS region.
  • The connection being deleted or never existing.

Steps to Resolve the Issue

To resolve the InvalidVpcEndpointConnectionID.NotFound error, follow these steps:

Step 1: Verify the Connection ID

Ensure that the VPC endpoint connection ID you are using is correct. You can list all VPC endpoint connections in your account using the AWS CLI:

aws ec2 describe-vpc-endpoint-connections --region

Replace <your-region> with the appropriate AWS region.

Step 2: Check for Deletion

If the connection ID was previously valid, check if the connection has been deleted. You can verify this by reviewing your AWS CloudTrail logs or checking with your team.

Step 3: Correct the Region

Ensure that you are querying the correct AWS region. VPC endpoint connections are region-specific, and using the wrong region will result in this error.

Step 4: Update Your Scripts

If you are using scripts or automation tools, update them with the correct VPC endpoint connection ID and region.

Additional Resources

For more information on managing VPC endpoints, refer to the AWS VPC Endpoints Documentation. If you need further assistance, consider reaching out to AWS Support.

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