Supplier collaboration file upload fails with permission denied error in cloud deployment

PLM ENOVIA
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1

We’re running ENOVIA R2022x in AWS cloud and experiencing critical issues with supplier file uploads in the collaboration module. When suppliers attempt to upload bid documents, they receive permission denied errors despite having proper access roles assigned.

The error appears inconsistent - some suppliers can upload while others cannot, even with identical role configurations. We’ve verified IAM role mapping looks correct in the console, but uploads still fail for about 40% of our supplier base.

Our cloud storage policy was recently updated to enforce encryption at rest, and the permission audit logs show successful authentication but failed S3 bucket access. This is blocking our entire bid submission process and causing significant delays in procurement cycles.

Has anyone dealt with similar permission issues in cloud-deployed supplier collaboration? We need to understand if this is an IAM policy problem, a bucket configuration issue, or something in ENOVIA’s cloud storage integration layer.

system 2

After reviewing your symptoms, this is definitely a multi-layered permission issue that needs systematic debugging across all three focus areas you mentioned.

Cloud Storage Policy Resolution: Your encryption-at-rest enforcement requires updating the S3 bucket policy to include conditional permissions. Add this to your bucket policy:

{
  "Effect": "Allow",
  "Principal": {"AWS": "arn:aws:iam::ACCOUNT:role/SupplierRole"},
  "Action": ["s3:PutObject", "s3:PutObjectAcl"],
  "Condition": {"StringEquals": {"s3:x-amz-server-side-encryption": "AES256"}}
}

IAM Role Mapping Fix: The 40% failure rate indicates inconsistent role assumption. Verify your ENOVIA supplier integration is correctly mapping external supplier identities to IAM roles. Check the AssumeRole trust policy includes the ENOVIA application role as a trusted principal. In your ENOVIA configuration, ensure the supplier collaboration service is using the correct STS endpoint for role assumption. We’ve seen cases where the default credential chain wasn’t picking up the container role credentials properly in ECS deployments.

For suppliers using federated access, verify your SAML assertion includes the correct IAM role ARN attribute. The role session name must also comply with AWS naming requirements (alphanumeric and +=,.@- characters only).

Permission Audit Implementation: Enable detailed CloudTrail logging for your S3 bucket and configure it to capture data events, not just management events. This will show you every PutObject attempt with the exact IAM principal, source IP, and denial reason.

Create a Lambda function triggered by CloudTrail logs that parses permission denied events and correlates them with ENOVIA user sessions. This gives you real-time visibility into which suppliers are affected and why. We built a similar audit system that reduced our troubleshooting time from hours to minutes.

Also implement IAM Access Analyzer to continuously monitor your bucket policies for unintended access. It will flag if your encryption policy accidentally removed necessary permissions.

Immediate Action Plan:

  1. Run AWS IAM Policy Simulator for a failing supplier account against your S3 bucket ARN with PutObject action
  2. Check KMS key policy if using SSE-KMS (must grant kms:Decrypt and kms:GenerateDataKey to supplier roles)
  3. Review ENOVIA application logs for AWS SDK error codes (look for AccessDenied vs InvalidToken vs SignatureDoesNotMatch)
  4. Verify CORS configuration on bucket matches your ENOVIA CloudFront distribution origin
  5. Test with AWS CLI using assumed role credentials to isolate whether issue is in AWS layer or ENOVIA integration layer

The inconsistency across suppliers suggests your role assumption logic may be using cached credentials that haven’t been refreshed after the policy change. Force a credential refresh in your ENOVIA application server and verify the STS token duration is appropriate for your upload file sizes (large files need longer-lived tokens).

This draft is based on general ENOVIA knowledge. It has not been verified against your specific version and environment. Practitioners: verify the steps and share your experience below.

3

I’ve seen this pattern before with S3 bucket policies. The encryption-at-rest requirement you mentioned likely changed the required IAM permissions. Check if your bucket policy includes the s3:PutObjectAcl permission alongside s3:PutObject. When encryption is enforced, suppliers need both to successfully upload encrypted objects.

5

This sounds like a cross-account access issue. Are your suppliers accessing through federated identities or direct IAM users? In our R2022x cloud setup, we had to explicitly configure the AssumeRole trust relationships to allow external supplier accounts to write to our collaboration buckets. The permission audit showing successful auth but failed S3 access is a classic sign of missing trust policy configuration. Also verify your CORS settings on the bucket - they need to match the ENOVIA application origin exactly or uploads will be silently rejected by the browser before they even hit AWS.

6

The 40% failure rate suggests a permission boundary or SCP issue rather than a blanket policy problem. Run an IAM policy simulator for both working and failing supplier accounts to identify the exact deny statement. When we enforced encryption, we discovered our organizational SCPs were blocking kms:Decrypt for certain external principals, even though the bucket policy allowed it.

7

Check your KMS key policy if you’re using SSE-KMS encryption. The key policy must explicitly grant decrypt permissions to the IAM roles that suppliers assume. This is separate from the S3 bucket policy and often overlooked during encryption migrations. Your ENOVIA application role also needs kms:GenerateDataKey permission to encrypt objects on behalf of suppliers.

8

I’d also recommend checking the ENOVIA application logs for the actual AWS SDK error codes. Permission denied can mask several different issues - could be ExpiredToken, InvalidAccessKeyId, or SignatureDoesNotMatch if there’s a clock skew problem. We found that some supplier networks had NTP issues causing signature validation failures that appeared as permission errors. The CloudTrail logs on AWS side will show you the exact denied API call with the error code, which is more reliable than the ENOVIA UI error message.