Set-AzureRMIntegrationAccountAgreement should allow null identifier values
The ReceiverQualifier and SenderQualifier are optional in some EDI files, but to create a Partner is necessary to select a Qualifier value and there isn't the option to select something similar to "<NotValued>" as in BizTalk. MS has said: "This is already possible today except that the UI doesn’t support it." So we are following this advice but this limits automation possibilities including breaking some we had in place. If you use the “EditAsJson” view you end up with an invalid Agreement in some ways. For instance, Set-AzureRMIntegrationAccountAgreement requires a non-empty HostIdentity.Value and GuestIdentity.Value as does New-AzureRMIntegrationAccountAgreement.
You can use the “EditAsJson” view from the portal and provide empty values and runtime will work."