Getting error "Provide an Agreement token that is valid and active" when I try to subscribe to a SaaS product in Limited status as the seller

The error you're encountering is likely because you're trying to subscribe to your own SaaS product while it's still in the "Limited" status. When a SaaS product is in the Limited status, it's not yet fully published and is only accessible to your account and any accounts you've specifically allowlisted for testing purposes.

To resolve this issue and properly test your SaaS product, you should follow these steps:

1. Ensure that your product is completely set up and has passed all system validations. This moves the product from "Staging" to "Limited" status.

2. In the Limited status, your product has a detail page that is only accessible to your account and allowlisted accounts. This is the stage where you should conduct your testing.

3. To test the subscription process, you may need to use a different AWS account that you've allowlisted, rather than the seller account. This is because the seller account might have restrictions on subscribing to its own product.

4. If you haven't already, consider setting up a test account and adding it to the allowlist for your product. This will enable you to simulate the customer experience more accurately.

5. Use this allowlisted account to access the product detail page and attempt the subscription process.

If you're still encountering issues after following these steps, it's recommended to contact the AWS Marketplace Seller Operations team for assistance. They can provide more specific guidance based on your product's configuration and status.

Remember, the Limited status is specifically designed for testing before making your product publicly available. Once you've completed all necessary testing and are ready to make your product available to all potential buyers, you can use the "Update visibility" change request to move your product from Limited to Public status.
Sources
SaaS product lifecycle in AWS Marketplace - AWS Marketplace