I am attempting to use Zapier to post information to an existing Trello card from connected apps. For instance, we use Trello as our CRM, and I am able to push generate outbound contracts from Trello to our esign vendor (esignatures.io). I then want to post updates to the customer Trello card if sending the contract failed; the contract is signed; etc.
My issue is how to effectively “find” the right Trello card. I am finding that the default (required) field is the Card Name in order to match to the card. I instead want to match the correct card to post to based on other field data in the card (in this case, the telephone number or email address fields which I just pushed out to the esign app via the outbound zap).
In sum, I want to know whether (and how) I can find a Trello card to post to using custom field data as opposed to the card name. This would have benefits not only for the esign app, but a variety of other use cases as well.
Thank you for any help you can provide!