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Contentful to Sanity Migration · Cardiff

Contentful to Sanity Migration in Cardiff

Moving Cardiff organisations from Contentful to Sanity, where the body content is what needs work. The two platforms represent rich text as different structures — with embedded entries, links and marks arranged their own way — so article bodies have to be transformed rather than transferred, and that transformation is the migration.

Why this comes up

The problem

Rich text exported from Contentful arrives as a structure Sanity cannot interpret.

What you get

What we deliver

  • Rich text converted between the two document structures, not copied across
  • Embedded entries and assets within body content preserved through the conversion
  • References between documents remapped, since identifiers change
  • Content model translated to Sanity's schema definitions in code
  • Assets migrated with their metadata rather than only their files
  • Conversion verified on real content, because the difficult cases are in the archive

Want this scoped for your business in Cardiff?

Thirty minutes, no charge, no sales script. You leave with a written summary of what contentful to sanity migration would actually involve — whether or not you use us.

Book a 30-minute call

Working in Cardiff

Wales

Cardiff has a significant broadcast and media sector alongside a large public-sector presence, and Welsh-language provision is a genuine requirement on public-facing work here rather than a nice-to-have.

Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option.

Sectors we work with in Cardiff

  • Media & Broadcasting
  • Financial Services
  • Public Sector
  • Higher Education
  • Sport

What we work with

Technologies and platforms

  • Sanity
  • Contentful
  • Portable Text
  • TypeScript

Who we work with

Industries we serve

  • Media companies
  • SaaS businesses
  • Retail
  • Professional services
  • Technology companies

Why us

Why Cardiff businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

Contentful to Sanity Migration in Cardiff — common questions

Why can rich text not simply be moved?
Because the platforms model it differently. Both represent formatted content as structured data rather than markup, but the shapes disagree — so a converter has to be written and, more importantly, checked against the varied content that has accumulated over years.
What happens to embedded entries?
They need handling explicitly. Content with an embedded product card, callout or related article inside the body is the part conversions break on, and a migration tested only against plain paragraphs will appear to work until an editor opens something real.
Do references survive?
Only if remapped. Documents referencing each other by identifier need those identifiers translating as part of the migration, and a run that imports documents before their targets exist produces references pointing at nothing.
How should the conversion be verified?
Against the oldest and strangest content you have. Recent articles follow current conventions and convert cleanly, whereas the archive contains formatting decisions nobody remembers making — and those are exactly the pages that will be noticed if they arrive broken.
Do you work with businesses across Cardiff?
Yes. We are based in Leicester, United Kingdom and work with clients throughout Wales, including Cardiff and the surrounding Cardiff area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Cardiff businesses do you usually work with?
Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option. Beyond that we work across Media & Broadcasting, Financial Services, Public Sector, Higher Education and Sport.
Do you cover the areas around Cardiff?
Yes — we work throughout Wales, including Bristol, Swansea. Cardiff is an urban area of roughly 490,000+, and we take on work across the wider Cardiff region rather than the city boundary alone.

Talk to us about Contentful to Sanity Migration in Cardiff

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom