Listing feed support

Is your listing feed running into limits?

If the integration between your agent-CRM and your website has been running unchanged for years, chances are revenue is leaking behind the scenes. We audit the feed, clean up the mapping, and move you to an approach that is ready for the coming years. Tested, parallel, zero downtime.

Explain the situation

This page is for agencies that want to update their feed integration without taking the website offline.

Pascal walks an agency through a feed migration
When
hard deadline

whenever you are ready

2 to 3 weeks

throughput for a clean migration

0 downtime

parallel test and controlled cutover

30 days

active aftercare after go-live

Side by side

What Pascal builds · What happens without migration

With a modern feed integration
live

Inventory flows, leads keep arriving

source

Your listing feed v3

v3
live data stream

Website & listings

• sync ok

Campaigns

• sync ok

Email & nurture

• sync ok

CRM & follow-up

• sync ok

Every mutation from your system lands on your channels within minutes.

Live sync< 5 min updatesLeads with context
On a legacy integration
offline

Connection hiccups, channels fall behind

source

Your listing feed

v1/v2
requestno data returned

Website & listings

• no sync

Campaigns

• no sync

Email & nurture

• no sync

CRM & follow-up

• no sync

Legacy endpoints return incomplete data. Site lags, leads hiccup.

Delayed updatesForms hiccupLead flow leaks
Risk

What goes wrong when your integration lags

A stale feed integration rarely throws a hard error. It leaks gradually. Signals we see at agencies:

New listings appear late

New properties sometimes show up hours or a day later on the site. In those hours you are already losing reach on portals.

Search and forms hiccup

Visitors get slow filters or forms that sometimes fail to submit. Exactly where you lose the lead.

Status, price, and media fall behind

Price changes, sold notifications, and new photos are out of sync with your system. Confusing experience for buyers.

Lead flow dries up slowly

Your site is your main inbound channel. A hiccupping integration opens holes in organic and paid traffic you only see when you look for them.

Check

How do you know your integration needs attention?

Most offices only notice once something visibly breaks. Earlier signals:

  • Your site has been running on the same integration for years without significant updates.

  • Your web partner or internal team is not sure which version of the integration is active.

  • Mutations show up noticeably later than in your system.

  • You received signals (letter, email, portal notification) about an upcoming update that has not been processed yet.

Approach

How we migrate you without risk

Not a quick fix. A structured migration where your site stays live and you come out stronger than you started.

1. Audit and scope

We inspect which endpoints, fields, and webhooks you use, where they differ from the current specification, and which systems (website, forms, CRM, ads) depend on them.

2–3 working days

2. Migration plan

You get a concrete plan: what moves across, what gets remapped, which risk areas (photos, status, search filters) need extra attention, and how we test.

1–2 working days

3. Implementation

We build the new integration alongside your existing one. Nothing goes live until it is all green: feed, status updates, images, search parameters, and form submissions.

5–10 working days

4. Parallel test and cutover

We run the new integration in shadow mode alongside the old, compare output per listing, and then perform a single controlled cutover. Zero downtime, rollback path ready.

2–3 working days

5. Aftercare and monitoring

For the first 30 days we actively watch feed, mutations, and lead flow and correct differences where needed.

30 days
What you get

A full feed migration

Working new integration

Every endpoint you currently use runs on the current version, tested against live inventory and compared to your current output.

Migration report

Summary of what changed, which fields are mapped differently, and where the new API unlocks future growth.

Webhook check

We verify you are on the current webhook version and migrate if not.

Zero-downtime cutover

The switch itself is a controlled flip, not a rebuild. Your site stays online, visitors see nothing.

Lead flow check

We verify that forms, search queries, and lead routing still arrive 1:1 in your CRM after migration.

30 days of monitoring

Post-launch active watch on differences between new and old, with direct fixes where needed.

Timeline

How much time a migration takes

A clean migration takes 2 to 3 weeks throughput. The earlier you start, the more margin for testing. A typical plan:

  1. Week 1

    Finish audit and migration plan, start new implementation.

  2. Week 2

    New integration works technically and runs in parallel with the old.

  3. Week 3

    Parallel tests, diff analysis, controlled cutover.

  4. Post go-live

    30 days monitoring, feed and lead flow actively watched.

Who it is for

Specifically for agencies on legacy integrations

Agencies with older integrations

Your site has been running on the same integration for years. Mutations come through, but not always quickly, and nobody has really looked at it.

Owners who do not want to go technical

You do not need to know which fields and webhooks change. We run the migration, you keep the site working.

Offices without a dedicated web partner

No developer on call? We can handle the migration end-to-end without you having to involve anyone else.

Pascal of Funneladviseur
Pascal · migration architect

What I tell agencies

"This is not an IT job. It is the difference between your website still producing leads next month or going silent. Whoever starts now has margin. Whoever waits until late April has to hope everything works first time."

2026

v3 only

30 days

post-cutover care

1-on-1

direct line to Pascal

FAQ

Common questions about a feed migration

What happens if my integration fails?+

New listings no longer reach the site, search and forms break, leads dry up. The sooner you address it, the easier and cheaper it is to fix.

How do I know which version I am on?+

Usually your web partner or plugin provider knows. If nobody is sure, we check it for free during intake and show you the exact endpoints your site is calling today.

Is a new integration only technical or is there more to it?+

Usually faster, better documented, and with more control over data mapping. The migration is a natural moment to also tighten listing modules, landing pages, and campaigns commercially.

Will my site go down during migration?+

No. We build the new integration alongside your current one, test in parallel, then cut over in a controlled flip. Visitors notice nothing.

Do you use the official documentation?+

Always. We work 1:1 with your vendor documentation and do nothing outside of it.

Can you work alongside our existing web agency?+

Yes. If you already have someone on the site, we only pick up the migration part. We coordinate directly with your partner so you are not in the middle.

Next step

Do not let your integration become a problem.

Book a 30-minute feed check. We look at which version you run, what needs migrating, and what it can yield. No sales pitch, a factual read-out.

Approach based on your own vendor’s official documentation. We work with that source 1:1 and do not deviate from it. See our full commercial listing feed approach →