During system configuration, there is a field where user needs to enter the Service URL. Now what does OpsHub Integration Manager accept in the Service URL field.
Solution
Service URL is a mandatory field during system configuration that is used to provide OpsHubTFSService URL. OpsHub Integration Manager requires OpsHubTFSService to communicate with Team Foundation Server (TFS) and Azure DevOps.
You need to register OpsHubTFSService before providing URL in Service URL field. Refer How to register OpsHubTFSService? to learn about how to register OpsHubTFSService.