In D365 Finance and Operations there is the functionality on vendors as part of public sector features to create a list of certification types (VendCertType) and add certification details to vendors (VendCertification) via a menu on the vendor record.

This functionality should be copied over to the customer records also to help track customer certifications.

This is applicable in industries where customer control is required perhaps on whether goods/services can be provided to customers without relevant certification. There are features to help restrict items to sell such as product filters but no means to store the certification details in the same way we have for vendors.