Guides

Guides to questions I keep running into when connecting systems for Swiss shops and SMEs. With examples from the official documentation and the pitfalls that only show up in production.

  1. Validate a Swiss UID number in WooCommerce

    Format CHE-123.456.789, modulo 11 check digit, lookup in the federal UID register and what goes wrong in the checkout.

  2. Connect the bexio API to WordPress

    App in the Developer Portal, sign-in via OAuth 2, refreshing tokens, creating contacts and notes, plus three approaches compared.

  3. Zefix API: company data from the commercial register

    Requesting access, finding a company by UID or name, fields in the response and how it differs from the UID register.