The early ERPs made a bold promise: one unified platform for every system a business would ever need. It was the right promise. Then they rested on their laurels, and the promise curdled into its worst form — you could have “one system,” but only by buying all of it, implementing all of it, and paying for all of it, whether you used a tenth of it or not.
SaaS ran the other way and won on depth: a brilliant tool for billing, another for planning, another for close, another for spend. Twenty years later the average finance team runs half a dozen of them or more, none sharing a ledger, all reconciled by a person after the fact. Best-in-class everything; coherent nothing.
The industry has offered two bad deals: buy the monolith and use a tenth of it, or buy ten tools and hire someone to stitch them together.
Modularity is the third deal
Caytava is built as the first modular ERP: every module stands alone, every module plugs into the others, and every module is priced on its own meter. Concretely:
- Bring your own GL. Keep QuickBooks or Xero as the book of record and run our CRM, our FP&A, our card point-of-sale around it. Everything reconciles back to the ledger you already trust.
- Or bring your own edges. Run our GL and keep your POS, your CRM, your payroll provider — we read them into the ledger and reconcile as they flow.
- Or run it all — and get the thing the original ERPs promised: deal to cash to close on one dimensional ledger, with consolidation computed at write time.
Because the modules share one ledger when they’re together — and speak standard connections when they’re apart — you never face a re-platforming cliff. Turn on one module, retire one subscription. Repeat when ready.
What this does to cost
Two things, and they compound. First, each module you adopt retires a bill — the per-seat CRM, the planning tool, the close tool, the bill-pay subscription. Second, the meters follow the size of the job, not your headcount: pricing scales on revenue bands, entity counts, and volume, never on seats. A small company’s bill looks like a small company’s bill, and a lot of the platform — the CRM, Ask Kate, core HR, time tracking, the document vault, budgeting & planning for small businesses — is simply free.
And time is the quieter saving: a module that shares a ledger with its neighbors has no export step, no sync to babysit, no “which system is right” meeting. The integration work you’re paying a person to do today is the work the architecture deletes.
The depth question
“Modular” usually means shallow. It doesn’t here, and the ledger is why: multi-entity balancing enforced inside every entry, multi-currency with CTA handled deterministically, ASC 606 schedules, MACRS depreciation, lease accounting, a 19-rule exception engine. The depth NetSuite and Intacct sell — at a fraction of the price, without the implementation project, with a free CRM where they’d sell you another module.