The Breadcomb Partial view Views\Product\_ProductBreadcrumb.cshtml is included in the product template, for example Views\Product\ProductTemplate.Simple.schtml Although if you have a theme installed then you may need to look at the theme templates instead
I have changed breadcrumb delimiter from "\" to ">>" in "InstallationService.cs" file under Nop.Services. After changing this I have build my project and have copied the "Nop.Services.dll" to Nop.web. But no changes happen on category page. Anyone can help me regarding this?
If you want to change a delimiter in the existing store, then please go to admin area > configuration > settings > all settings. Find the "commonsettings.breadcrumbdelimiter" setting and change its value