BUYER'S GUIDE · TOOL

What will it actually cost to switch FSM vendors?

Switching FSM platforms costs more than the new subscription: contract overlap, data migration, retraining, integration rebuilds, and a productivity dip all land at once. This calculator models those cost elements from the Buyer's Guide at low, expected, and high estimates, then compares the result with the guide's own worked example.

Companion to switching-cost calculator section of the Buyer's Guide.

Low estimate

$0

Expected

$0

— mo of new-vendor SaaS

High estimate

$0

Your current and proposed platforms
Data and integrations
People — retraining and productivity

Cost breakdown by element

Cost elementLowExpectedHigh
Contract overlapOld SaaS billing during 60–90-day parallel run$0$0$0
Data migrationExport, transform, validate, re-import into new system$0$0$0
RetrainingPer person × ~1 week of lost productivity$0$0$0
Integration rebuildReconfiguring each integration in the new platform$0$0$0
Admin productivity dip~20% productivity loss for ~30 days post go-live$0$0$0
Custom report reworkBuilding any reports that don't exist out of the box on new platform$0$0$0
Total switching cost$0$0$0

In context

—

Reference point from the guide: the guide's worked example puts switching cost at $10,000–$31,500 against a $1,250/month new subscription, which is 8 to 25.2 months of new-vendor SaaS. Lower than that, check that you counted the full overlap and the admin productivity dip. Higher, and the cost is probably real: buying right the first time is cheaper than course-correcting later.

→ If the math is forcing a switch anyway, narrow your replacements with theVendor Matcher, then run theROI Calculator to confirm the new platform's gain exceeds this switching cost in a defensible payback window.

How the math works. Overlap = current monthly SaaS × (overlap−1, overlap, overlap+1) months across low/expected/high; the new vendor's subscription is excluded since you would pay it either way. Data migration uses ranges derived from the guide's $3k–$12k band, expanded to three complexity tiers: simple $1.5–4k, moderate $4–8k, complex $8–18k. Retraining uses $500/$1k/$1.5k per person for low/expected/high, counted for the larger of the people-to-retrain input and the admin staff affected. Integration rebuild $800/$1.5k/$3k per integration. Admin dip = staff × (salary÷260 working days) × 30 days × (10%/20%/30%) productivity loss. Custom report rework $1k/$2k/$3.5k per report — derived from the guide's $150–$250/hr professional-services rate cited in the Hidden Costs section.

Source: cost-element framework in the switching-cost section of the FSM Buyer's Guide. All figures USD. Nothing leaves your browser.