Triggers let you control how or when a flow begins or can allow a contact to join a group. A flow can be triggered by a keyword or missed call and scheduled on a future date.
What if you want a trigger to only act upon members of certain groups or to exclude groups?
First, navigate to the triggers tab.
![](https://storage.crisp.chat/users/helpdesk/website/19a22d70f8853400/d9726e42-7ece-426b-9b90-04379a_y166kl.png)
Here, click the blue ‘Create Trigger’ button at the top left.
![](https://storage.crisp.chat/users/helpdesk/website/6827447e26bc2c00/f2f2efb3-44c0-4b49-a5a1-fe9bcc_g0bo4r.png)
You’ll see the list of possible trigger types.
![](https://storage.crisp.chat/users/helpdesk/website/c47385556df21000/0a5c01bc-2c98-43c6-86a0-080b5c_nut2lr.png)
For our example, we’ll choose to create a message keyword that launches a flow.
![](https://storage.crisp.chat/users/helpdesk/website/6ad6359a9599dc00/c289dbe8-3503-4714-83b8-dae533_1vsr5gk.png)
![](https://storage.crisp.chat/users/helpdesk/website/78765a8936f9d400/98c876b3-1807-4e5a-956c-a5f17c_1pvpoka.png)
At the bottom of this trigger’s settings, we see that we can optionally choose to only include certain contact groups or to exclude contact groups.
![](https://storage.crisp.chat/users/helpdesk/website/66a8564682b7a800/65e976db-e35c-4ee0-84b5-bacb74_1cmb7tz.png)
In our example, we want contacts to send the keyword ‘promo’ that will trigger a Satisfaction Survey flow in order to receive a coupon. We don’t want contacts who’ve already registered for this promo or a group called ‘Segment A’ to be able to participate, so we’ve excluded them.
![](https://storage.crisp.chat/users/helpdesk/website/c6623f4191e7f000/90f5f61b-8483-40ca-9be7-c2d0c4_14syhw4.png)
Only members of these two groups will be excluded from starting the Satisfaction Survey flow- all other contacts who send the keyword will be started in the flow.