SynthesisLogic

How do I connect all my business apps together?

Decide which system owns each kind of data, then connect the others to it. Use each app's API to read and write, webhooks to react the moment something changes, and a unique key per record so syncing never creates duplicates. Software without an API is connected through its exports, its database or its screens.

Updated 8 November 2026.

This page answers

  • How do I connect all my business apps together?
  • Can you integrate my CRM with my accounting software?
  • How can I automatically sync data between different systems?
  • Can I connect my website to my internal business software?
  • How do I automate data transfers between Google Sheets and my database?
  • How do I connect software that doesn't have a built-in integration?
  • Can I automate workflows using webhooks?
  • How do I prevent duplicate records when syncing multiple apps?
  • Can you design a central system that connects all my business tools?

Ways to connect

MethodUse it whenExample
APIThe app has one (most modern software does)Create an invoice in the accounting app when a deal is won in the CRM
WebhookYou need to react the moment something happensThe shop sends each new order to your system as it is placed
Database accessIn-house or older systemsRead stock levels from the ERP's database through a read-only role
File export and importThe system only exports Excel or CSVRead the nightly export, prepare an import file for the other system
EmailThe system only sends notificationsRead order confirmation emails and turn them into records
Screens through a browserNo API, no export, such as a supplier portalLog in with the agent's own account and fill the form

Sync without duplicates

  • One system owns each kind of record: the CRM owns customers, the accounting app owns invoices, the shop owns orders.
  • Every record carries the owner's ID in the other systems, and writes are upserts: update if the ID exists, create if not.
  • Matching on email or tax number catches records created by hand before the sync existed; doubtful matches go to a person.
  • Each write carries an idempotency key, so a retried write does not create a second record.
  • Changes are logged on both sides, so a wrong update can be traced and undone.

One central system

For a small business, a central system is often a database plus a set of connectors, with one record per customer, product and order and the IDs used in every other app. Your apps stay; the central layer keeps them consistent and gives the agents and reports one place to read from.

Questions

Can you connect our CRM to our accounting software?

Yes, through both APIs: won deals become customers and invoices, and payments update the deal. One side owns each record.

Our software has no integration. Can it still be connected?

Usually: through its database, its exports, its emails or, as a last resort, its screens.

Should I replace Google Sheets with a database?

When several people or systems write to the same sheet, or it grows past a few thousand rows, a database with the sheet as a view is safer.

Want an agent built for this?

We build AI agents in code, connected directly to your systems, with no per-task fees. Write a few lines about the work you want to automate and the systems you use; we reply to set up an online intro call.

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