Can a rule be created to send an email to a member after X people join a card?

[Stephen Ball]

Hi,

I'd like Trello to send me an email alert after 5 or more board members join a card. They could be any 5 members not specific individuals.

Is there a way to do this please?

Any help would be appreciated.

Thanks.

[Sayed Bares _ServiceRocket_ · Accepted solution]

Welcome to the community @Stephen Ball ,

This is definitely doable and to achieve it you will have to add 3 automations and 1 custom field.

Custom field

You will need to add a number type custom field to keep track of #members in the card

Automations

Increment

You will need to use an automation to be triggered when someone is added to the card and then increment the customfield created in the previous step by 1

Decrement

You will need to use an automation to be triggered when someone is removed from the card and then decrement the customfield created in the previous step by 1

Email

You will need to use an automation to be triggered when your customfield is more or equal to 5

Hope it helps!

[Stephen Ball]

fantastic thank you!

[milynnus]

@Stephen Ball 

You can do it by setting up two rules to add or subtract 1 from a counter custom field and this another rule which will trigger then counter is greater than 5... the specifics you can work it out. 

[Stephen Ball]

this is very helpful, thank you!