What we fixed Top 10 fixes for historical commissions never get backfilled

Skipping historical commissions keeps reporting shallow and forces payout questions back into old spreadsheets and email chains. Top 10 fixes: 1) Backfill one carrier or one month at a time instead of waiting for a perfect full migration. 2) Store rep split context with the imported history. 3) Use the backfill to validate current mappings before the next close cycle. 4) Separate historical cleanup from current-month payout work. 5) Escalate recurring carrier problems before totals are approved. 6) Use one repeatable review rhythm instead of heroics. 7) Review the exception queue before the close-week crunch. 8) Save the owner and next step on unresolved items. 9) Keep source files with the issue notes. 10) Separate historical cleanup from current-month payout work.