There seems to be two areas for basic data for Contact Roles within IFSCloud 23.1.11.
Relationship Management > Customer Relationship Management > Basic Data > CRM Contact Roles
and
Application Base Setup > Enterprise > Basic Data > Contact Roles
What is the purpose of the two datasets?
Within Customer Contacts, role can be selected and this considers Basic Data. Within Sales Quotation process role can be selected and this considers CRM Contact Roles. I’d expect both to consider the same dataset.