You disabled the creation of Accounts in Outlook/Gmail Server Side Integration Add-In, but the Account options are still visible, even though you're not able to create new items. When you disable other objects like Opportunities they become invisible on the Add-In.
SAP Hybris Cloud For Customer Server Side Integration Add-In
The Accounts are the leading objects to see in the integration, so even if you disable their creation and are not allowed to create, the Account related options will still be visible.
Standard system behaviour.
If you need this functionality urgently you may contact your implementation manager to help with such request or approach directly the SAP Cloud Service Center (firstname.lastname@example.org).
Note: The services of the SAP Cloud Service Center will be charged as packaged services based on fixed prices.
An alternative option may be to check the SAP Customer Influencer Site to submit an idea: https://influence.sap.com/SAPCloudforCustomer
Server Side Integration; Add-In; Add-On; Outlook; Gmail; iCRM; Account; , KBA , LOD-CRM-GW-SCC , Invisible CRM - Smart Cloud Connect Solution , Problem