Hi Josue Gonzalez, Welcome to Microsoft Q&A and Thanks for posting your query here.
The error message "This offer is not available for subscriptions from Microsoft Azure Cloud Solution Providers" indicates that the specific offer you are trying to deploy is not available for subscriptions from Azure Cloud Solution Providers (CSP). Although ARM-based resources are generally available for Azure CSP, there may be certain offers or subscriptions that have restrictions.
It is recommended to review the documentation and guidelines provided by Microsoft Cloud Solution Provider (CSP) program to understand the specific requirements and limitations for deploying the CS-ES in a CSP subscription.
https://video2.skills-academy.com/en-us/partner-center/marketplace/cloud-solution-providers
Can you please explain more on what exactly you mean by saying "We're trying to deploy a CS-ES" as I did not understand the term CE-ES.