The three parts of nearly every workflow
Open almost any automation tool and you will find the same logic underneath, however the interface looks. Something happens (a trigger), the system checks a question (a condition), and then it does something (an action). Understanding these three parts lets you read, plan and troubleshoot an automation workflow in almost any tool. The broader picture is in the introduction to marketing automation; this article focuses on the parts themselves.
Triggers: what starts the flow
A trigger is the event that puts a contact into the workflow. It answers the question: when should this begin?
Typical trigger types include:
- A form submission or sign-up. Someone joins a list or requests a download.
- A purchase or order status. An order is placed, shipped or refunded.
- A date or time. A birthday, a renewal date or an appointment reminder.
- A tag or field change. A contact is tagged as a customer, or their status changes in your CRM.
- A behaviour. A page visit, a link click or a basket left behind. These are the behavioural triggers that deserve care about privacy and tone.
- Inactivity. No opens or purchases for a set period.
Good triggers are specific and deliberate. A trigger that is too broad, such as “visited any page”, can enrol people who have no interest in the message. A trigger tied to something fragile, such as a form you may later delete, can break without warning.
Also decide who is allowed to enter. Can existing customers enter a welcome sequence? Can someone enter more than once? These entry rules are part of the trigger.
Conditions: the questions the system asks
Conditions, sometimes called rules, filters, splits or branches, check something before the workflow proceeds. They decide which path a contact takes, or whether they continue at all.
Examples:
- Has this person already purchased?
- Is their country one you serve?
- Did they click the link in the previous email?
- Do they carry a particular tag?
- Is the order value above a certain amount?
Most conditions give a yes or no. Combined, they let you treat different people differently without writing separate workflows. This is where customer segmentation and tags become practical: you are sorting people based on information you hold.
Two warnings. First, conditions are only as good as your data. If tags are out of date or fields are blank, a condition can send people the wrong way; this is where good data hygiene helps. Second, every condition needs a clear answer for the “none of the above” case, otherwise some contacts fall out of the flow unnoticed.
Actions: what the system does
An action is the thing that happens. The most obvious is sending an email, but there are many others:
- Send an email or message.
- Wait for a set time or until a date.
- Add or remove a tag.
- Update a contact field.
- Add the contact to or remove them from a list.
- Create a task or notify a team member.
- End the workflow.
The wait is an action people often forget to treat as one. It is what turns a pile of emails into a paced sequence, as in a drip campaign.
Every workflow needs a clear ending. If a path never finishes, contacts may sit in limbo or restart unintentionally.
Putting them together
Take a simple, illustrative workflow for a free guide:
- Trigger: a person submits the form to download a guide.
- Action: send an email with the guide link.
- Action: wait three days.
- Condition: has the person clicked the guide link?
- If yes, action: send a short email asking what they thought, and tag them as engaged.
- If no, action: send a reminder with the link, once.
- Action: end the workflow.
Three days is an arbitrary figure chosen for the example; in practice the right gap depends on your audience. Notice how the single condition changes the experience. Without it, everyone would receive the same follow-up regardless of what they did.
Common mistakes
Missing exits. A reminder keeps arriving after a purchase because there is no condition checking for it.
Too many conditions. Complicated branching is hard to test and harder to maintain. If a workflow needs a long list of rules, consider splitting it into several simpler ones.
Overlapping triggers. Two workflows start from similar events, and the same person gets both.
Unclear trigger timing. A trigger set to fire on “any change” may fire many times for one customer.
Forgetting the human. Some situations need a person to step in. Automation limits are discussed separately, but a task or notification action is often the answer.
How to plan and check your logic
Draw the flow before building, so each trigger, condition and action is visible. An automation map also exposes loops. After building, test each path with test contacts and check the exits; automation testing should cover each branch rather than only the main route. Later, an automation audit makes sure the logic still matches your business.
A word on data and consent
Triggers and conditions often rely on personal data and tracking. Privacy and consent rules vary by country and change over time, so check what applies to you before using data in a new way. This is general information, not legal advice. Using only the fields and signals you really need keeps workflows simpler and respects data minimisation.