Can you explain the allowed syntax for prefix and suffix filters ?

[MathieuBuisson]

Can we use wildcards in "subjectBeginsWith" value ?
And can we use wildcards in "subjectEndsWith" value ?

For example, can we specify the following value for "subjectBeginsWith" to get virtual machines events in any resource group using an asterisk (*) character in place of the resource group name :

/subscriptions/<subscription-id>/resourcegroups/*/providers/Microsoft.Compute/virtualMachines

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• ID: e3e25d3b-669e-c663-0cc0-8b91672c40c1
• Version Independent ID: d3226725-a5a2-39eb-9082-20956038462b
• Content: Azure Event Grid subscription schema | Microsoft Docs
• Content Source: articles/event-grid/subscription-creation-schema.md
• Service: event-grid
• GitHub Login: @banisadr
• Microsoft Alias: babanisa

[amanarneja]

@MathieuBuisson Currently subjectBeginsWith nor subjectEndsWith supports wildcards (Source: https://docs.microsoft.com/en-us/powershell/module/azurerm.eventgrid/new-azurermeventgridsubscription?view=azurermps-5.4.0). This actually might be a good product feedback though. Can you post it @ https://feedback.azure.com/forums/909934-azure-event-grid so that the team can triage/investigate it ?