Data Management Issues

C.

With a private sharing model, users can't see if records already exist in the system and create new ones that they can see.

Also, IT receives many requests for additional access to users as well as users individually sharing records.

The situation described in the question is a symptom of a sharing model that is too public. Here's why:

Duplicate records are created when multiple users create similar records without knowing that they already exist in the system. This happens when users do not have access to the existing records due to restrictive sharing settings. If the sharing model is too public, users can access more records and can see if a similar record already exists, thus reducing the number of duplicates.

Numerous sharing rules are created to grant access to specific records to certain users or groups. If there are too many sharing rules, it indicates that the sharing model is not well-designed, and users are not able to access the records they need. This can be due to restrictive sharing settings, which can be resolved by making the sharing model more public.

Manually shared records are created when users need to grant access to specific records to other users outside of their organization. This is usually done when the sharing model is too private, and users cannot access the records they need. By making the sharing model more public, users can access more records, and the need for manually shared records can be reduced.

A role hierarchy with too few roles and object permissions on profiles that are too restrictive can also restrict user access to records, but they are not the primary causes of the symptoms described in the question. The most likely cause is a sharing model that is too restrictive, making it difficult for users to access the records they need and leading to the creation of duplicate records and numerous sharing rules.