From Emergency Message EM-24009:
... Since May of 1992, a prepayment review is required for any SSI case (initial or post eligibility), if an underpayment (UP) of $5,000 or more is due through the month prior to the current computation month (CCM) as per SI 02101.025 - Basic Requirements of Supplemental Security Income (SSI) Underpayment (UP) Review (ssa.gov). Effective 03/16/2024, the amount of an SSI underpayment that requires a prepayment review will increase from $5,000 to $15,000. ...
This should help reduce the SSI workloads a bit. The SSI effectuation backlogs are a major problem.
I wonder whether something like this is planned for the Title II payment centers. Certainly the larger payments are a source of major delay. If you've been a high wage earner you could be looking at many months of delay before you're paid your back benefits. Would they announce that sort of change? Emergency messages generally don't concern truly emergent matters. They concern matters the agency believes are important -- that they want the public to be aware of. The agency isn't all that consistent in what it announces via EMs.