Currently there is no template support to customize the delete confirm dialog content. You can achieve it by using the following workaround.
Delete Confirmation dialog support is provided in v18.104.22.168. You can enable the option by using the ShowDeleteConfirmDialog Api.
The following example explains how to customize the delete confirm dialog.
The details of the record to be edited are displayed in the delete confirm dialog. The following code example corresponds to the record details.
The following screenshot illustrates the output.
Customized delete confirmation dialog
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