A zap that has been working for 4 years is breaking and I cant work out why - the error message is Status Code 400 Bad Request and the info given is this:
Problem
Your Zap is likely to be missing a required field, or a field value wasn't in a recognized format. For example, if a field in your action step is expecting an email address, but the value given is a name, the app may return a 400 error.
Solution
Check that your fields are correctly set up and mapped to each other.
What i cant make sense of is that my zap IS sending the data just fine. It arrives in the sheet! All fields arrive and all data is correct.
Any tips?