ERROR in Bedrock playground: You have not filled out the request form. Fill out the form before getting access.

This error occurs because you need to explicitly request access to specific foundation models before you can use them in Amazon Bedrock. Even if your AWS account is active, you need to go through a model access approval process.

To resolve this issue:

1. Navigate to the Amazon Bedrock console
2. Go to the "Model access" section
3. Select the specific models you want to use
4. Submit a request for access to these models
5. Wait for approval before you can use them in the playground

If you've already submitted the request form but still see this error, there could be several reasons:

• Your request might still be pending approval
• There might be an issue with your AWS account permissions
• If you're using an AWS Organizations account, there might be Service Control Policies (SCPs) restricting access

If you continue to experience issues after requesting model access, you can:

• Check your IAM permissions to ensure you have the necessary rights
• Try operating from the root user account to rule out permission issues
• If problems persist, consider opening a case with AWS Support under "Account and billing" for further assistance
  Sources
  Unable to request any model access in AWS bedrock service | AWS re:Post
  I'm getting an "Operation not allowed" error when requesting access to Bedrock's models from an account with IAM administrator policy and verified payment method. | AWS re:Post
  "Invalid Model Identifier Error in Amazon Bedrock and Unable to Request Specific Models" | AWS re:Post