Automation & workspaceUSA new deal becomes a card on your Trello board, a card moved to 'done' changes the deal stage, and the manager sees where the work is without opening the board.
Trello is where small teams keep their work visible: a board, a few lists, cards that move from left to right. The CRM is where the client, the deal and the money live. Between them there is usually a person who creates the card by hand after every sale and then asks in chat which list it is in now. The connection removes that step: a deal that reaches the agreed stage becomes a card in the right list with the client's details, the checklist and a link to the deal already in it; a card moved to another list changes the deal stage in the CRM; a comment on the card lands in the client's history. Trello stays exactly as your team set it up — the connection only creates cards and watches them move.
Before the manager wins the deal, opens Trello, creates a card by hand, pastes the client's details and adds the standard checklist from memory — and sometimes the card never gets created.
After the moment the deal is marked won, a card appears in 'New orders' with the client, the agreed scope, the checklist and a link to the deal; the team only picks it up.
Before the team drags the card to 'Done', and the manager finds out a day later when the client asks.
After the moment the card lands in 'Done', the deal in the CRM moves to the next stage and the manager gets it in their usual list of things to do — send the invoice, ask for feedback.
Before the team writes on the card 'the client has not sent the address', and the manager sees it only when they open the board.
After the comment is copied to the client's history in the CRM with the author and the time, the manager reads it in their usual place and calls the client right away.
Before to answer 'where is my order?' the manager opens Trello, scrolls the board and looks for the card by the client's name.
After the client card in the CRM shows which list the card is in, who is on it and when it is due, with a direct link to the card — the answer takes seconds.
For those who want to check: each point links to the official documentation page it comes from.
Access to the Trello REST API uses an API key plus a user token; the token can read and write the entire account, so it must be kept secret.
Source: developer.atlassian.com ↗ checked 2026-09-28A card is the basic unit in Trello: it has a name, description, labels, members and a history of actions including comments; the API lists, views, creates and edits boards, lists and cards.
Source: developer.atlassian.com ↗ checked 2026-09-28Webhooks: whenever a watched board, list or card changes, Trello makes an HTTP request to the address you choose; there is no limit on the number of webhooks.
Source: developer.atlassian.com ↗ checked 2026-09-28Webhook requests are signed by Trello (X-Trello-Webhook header) and retried 3 times with growing pauses if the receiver is unavailable.
Source: developer.atlassian.com ↗ checked 2026-09-28Users see every application they authorized and can revoke its token in the account settings; token scopes are read, write and account.
Source: developer.atlassian.com ↗ checked 2026-09-28Rate limits: 300 requests per 10 seconds per API key and 100 requests per 10 seconds per token; exceeding them returns error 429.
Source: developer.atlassian.com ↗ checked 2026-09-28Trello limits how often it can be asked: no more than 100 requests per 10 seconds for one access key and 300 per 10 seconds for one application, with a much stricter limit on requests about member accounts; when the limit is exceeded Trello answers with error 429, so bulk changes go in portions and the connection is built to wait and retry. Long lists — cards, actions — come in portions of no more than 1000, and a request for all cards of a board together with their full history can be refused as too large, so history is read separately. Notifications from Trello are retried 3 times if our side does not answer (after 30, 60 and 120 seconds) and then dropped; if notifications keep failing for 30 days, Trello switches them off on its own, and if the key they are tied to is revoked or expires, the notifications are deleted with it — so we keep an eye on the key's expiry date and on the health of the receiving side. The access key acts on behalf of the person who issued it and can read and write everything that person can, so we recommend issuing it from a named user with access to the agreed board only; if the key ever leaks, it must be revoked immediately in the Trello settings.
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Four services people come to us for most often. Each page explains what we do, how the work goes and where to start.
Choose the system, set up the pipeline, migrate data, train the team.
Learn more →Accounting, telephony, website, payments and messengers feed the CRM on their own.
Learn more →Orders, requests and answers around the clock, straight into your CRM.
Learn more →Flows between CRM, email, spreadsheets, payments and AI, on your own server.
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Automation & workspaceUSA won deal becomes a task in Jira, a client's complaint becomes a support task with a link to their card, and the manager sees the task status in the CRM without asking the engineers.
See scenarios →
CRMUSThe board-style CRM from monday.com: connect it once, and leads, deals and contacts stay in sync with your other tools
See scenarios →
Automation & workspaceUSDeals from the CRM appear as pages in your Notion base, tasks ticked off in Notion move the deal forward, and the team's wiki stays where the team already is.
See scenarios →
Automation & workspaceUSSlack as the team's alert desk: leads, deals and calls from the CRM land in a channel, and the team acts on them without leaving the chat
See scenarios →
Automation & workspaceUSZapier links your services without code: we set up the links, or replace them with our own code when there are too many steps
See scenarios →
Automation & workspaceUSThe spreadsheet your team already lives in: leads flow from a Google Sheet into your CRM, reports flow back into the sheet, and nobody copies rows by hand
See scenarios →Implementation · Development · Integrations →
Trello is a trademark of its owner. CoreviaFlow is not affiliated with it unless stated otherwise. Screenshots are taken from public vendor materials; the source is shown under each one.
