Preventing FRBR
If you are working with Primo VE and not Primo, see Understanding the Dedup and FRBR Processes (Primo VE).
There are several scenarios in which you may want to run the dedup process for the pipe, but you want to prevent specific records from FRBRizing and/or ensure that FRBR only works within a specific institution.
As mentioned above, it is possible to suppress specific records from taking part in the FRBR process by assigning them type '99' via the normalization rules (frbr/t).
Another method is to create a Delete Data Source and Reload type of pipe with System Last Stage set to DEDUP to process all records.
If you want to prevent cross-institution dedupuplication, you can consider using the Harvesting, NEP, Dedup & FRBR parallel process mode. In this mode dedup and FRBR are run as part of the pipe and only match records that belong to the institution of the pipe. Note that in this case, the institution is the owner of the data source and pipe, and if the data source includes multiple institutions, they will dedup among themselves.
Another option to prevent FRBR across institutions or also across any type of group is to add a key (such as the institution code) to the FRBR part. This ensures that candidates and the match are only found within the group.