A card can look familiar while its request format or placement requirements have changed. Here are three specific checks an app maintainer can take to their implementation team.
Documented differences + synthetic examples. No customer incident or live HubSpot test is represented here.
These examples concern HubSpot’s published converter and migration guidance. They are compatibility checks for your app, not claims that the converter is defective. The excerpts show selected fields only.
01 / ACTION REQUESTS
Can your handler read a JSON body?
Documented change: POST, PUT and PATCH action bodies use JSON in the converter, while legacy actions use form encoding. GET and DELETE use query parameters. HubSpot converter source.
Possible failure: a handler that only parses form data may fail to obtain external_status. That depends on its implementation; seeing the action definition does not prove the backend is affected.
What the source review records
The supplied action’s method, endpoint reference and evidence location, plus a prioritized body-format check. Backend parsing remains unverified.
What the implementation team must test
Both required request formats, validation, the intended record update and understandable failure handling in a controlled test environment.
02 / REQUEST PARAMETERS
Will an extra parameter be accepted?
Documented change: the converter adds appId to data-fetch and action requests. HubSpot converter source.
Possible failure: strict validation that rejects every unfamiliar query field may reject the new request. The identifiers above are invented. Request verification also needs review against the actual request; this example does not test signatures.
What the source review records
The fetch/action references that need a parameter-contract check. No claim about the deployed validator is made without its evidence.
What the implementation team must test
The permitted parameter set, actual request verification, and correct account/record handling. Add explicit support where appropriate; do not simply disable validation.
03 / TICKET CARD PLACEMENT
A ticket card needs both replacement locations.
Documented requirement: migration of a legacy ticket card requires distinct CRM-record and Helpdesk replacement cards, different titles, and both replacement IDs. HubSpot migration guide.
Review question: has the team accounted for both workspaces? These are illustrative excerpts, not complete deployment files or evidence of installed cards.
What the source review records
A supplied tickets object type triggers a two-location requirement and a request for deployment/test evidence.
What the implementation team must test
Record both replacement IDs and test visibility and applicable actions in each workspace before an authorized administrator begins view migration. HubSpot describes that operation as irreversible.
WHAT YOUR REVIEW CAN ESTABLISH
Findings tied to the inputs you supply.
The $750 independent, AI-assisted review covers up to two legacy cards in one public or unlisted app. We inspect accepted sanitized card definitions, synthetic responses and behavior notes, identify source-level changes supported by that evidence, and separate them from backend and rollout questions requiring further verification.
It includes an inventory, prioritized change/test plan and implementation scope or no-fit result. It does not include backend implementation, production troubleshooting, live-portal verification or migration execution. Complete confidential backend source is not part of the standard input package.
Delivery is within two business days after successful payment is verified, complete sanitized inputs are accepted and start is confirmed. Implementation is separately scoped from $4,500. The $750 is credited toward the same app’s implementation accepted within 30 days. Refund before work starts if you cancel or we cannot accept the review.
Prepared by Corbin Vachal with AI assistance. Independent of HubSpot. Sources checked September 9, 2026; the upstream converter and platform may change. Recheck the linked official sources before implementation.