An enterprise architect has requested the Salesforce integration architect to review the following (see diagram and description) and provide recommendations after carefully considering all constraints of the enterprise systems and Salesforce Platform limits.

There are multiple eligibility systems that provide this service and are hosted externally.34

However, their current response times could take up to 90 seconds to process and return.

These eligibility systems can be acc8essed through APIs orchestrated via ESB (MuleSoft).

All requests from Salesforce must traverse the customer’s API Gateway layer, which imposes a constraint of timing out requests after 9 seconds.

Which recommendation should the integration architect make?