Per KB 96087, if the revenue associated with a constituent was posted, then the revenue was changed to a different constituent, the original constituent still cannot be deleted due to the error, "This constituent has associated revenue and therefore cannot be deleted". My organization has a few duplicate constituents that were added as new constituents accidentally, instead of being matched to the existing constituent records, and we are unable to delete them due to the aforementioned issue. We think that changing the constituent on a posted revenue record should also update the financialtransactionlineitem tables so that these duplicate constituents can be deleted or merged.