Single Send API - custom properties not working with template
We had our application running till Friday 10/14 without an issue from last 6 months. It uses Single Send API to send email to a contact.
Since 10/14, we have noticed that some emails sent through it are not merging custom properties submitted to API. I have debugged and all values are getting submitted properly to API. This is also not a consistent behavior. I created multiple email templates to play with it and noticed that as soon as I add a decimal value, some custom properties stop working. This was not the case before 10/14. We have not made any code changes and it have sent more 100,000 emails with it before.
Just wanted to let you know that our email team is working on tracking down the issue. I’ve opened a customer support case with your team and will reach out directly.