Is there a way to disabled a "Shelf" on webportal instead of deleting them?

Dont know about v8 but from version 8.2 and up there is no option to disable a shelf nor can you delete a shelf if product(s) are assigned to it.
Maybe set the serviceitems to "Not availible" or hide the products via customized query see post below:
www.oneidentity.com/.../88542

Dont know about v8 but from version 8.2 and up there is no option to disable a shelf nor can you delete a shelf if product(s) are assigned to it.
Maybe set the serviceitems to "Not availible" or hide the products via customized query see post below:
www.oneidentity.com/.../88542

Niels is right. You cannot disable a shelf, just the service items behind the product. However, disabling those might result in the removal of existing requests.

I propose to use the flags AccProductGroup.IsSpecialGroup or AccProduct.IsSpecialProduct in combination with the customized query mentioned by Niels to solve your use-case.