A company uses Salesforce for CRM, a third-party tool for email marketing, and a custom order management system. They want to integrate these systems to have a unified customer view in Salesforce. However, the email marketing tool can only handle 500 API calls per day due to license limitations. As the Salesforce Integration Architect, how would you consider this constraint in your integration strategy?

A company needs to integrate Salesforce with a legacy system. The legacy system uses an old database and has performance limitations. The integration should not impact the performance of the legacy system. Also, the security team mandates the use of OAuth 2.0 for secure access. Which integration approach would you suggest?

An organization has Salesforce integrated with a .NET application. The integration is used to update records in Salesforce whenever a record in the .NET application is updated. Recently, the organization has been experiencing an increase in the volume of records updated in the .NET application, causing performance issues in Salesforce. What should be considered to address this problem?

In an integration scenario between Salesforce CRM and a medical record management system, which of the following data should be classified as confidential?

Your organization uses Salesforce to integrate with an external billing system. Occasionally, certain transactions fail to synchronize between the two systems due to various errors. What should be your error handling and recovery procedure for this scenario?