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BugZero found this defect 792 days ago.
This article documents how to create a Connected App in Salesforce to integrate with Veeam Backup for Salesforce via Salesforce API. A Connected App with proper permissions is required for Veeam Backup for Salesforce to integrate with Salesforce API using the OAuth 2.0 protocol.
If you create a Connected App in the Sandbox environment, please remember that the next sandbox refresh will erase the connected app configuration, and the product will not be able to refresh the connection to Salesforce. All backup jobs will fail to run.
See also: Create a connected app