Hi everyone. I’m pretty new to LangChain and have been trying to build some basic marketing automation flows with it—mostly for routing leads based on email content and scoring them. I’ve run into a problem that’s really slowing me down: my chains sometimes just... stop, without any error messages in the logs.
For example, I set up a simple chain to classify an inquiry and then fetch some CRM data. When the CRM endpoint is slow or returns an unexpected format, the chain doesn’t throw an error. It just outputs nothing, or gets stuck. I have to dig through each step manually to find where it broke. It’s making it really hard to trust these workflows for anything real.
Does anyone else deal with this? I’m used to tools where you get clear failure states, so this silent behavior is nerve-wracking. 😅
What are your strategies for better error handling? I’ve seen `verbose=True`, but that gives me a lot of info, not necessarily clear errors. Are there specific callbacks or patterns you use to make failures obvious? I’d love to hear about any practical fixes, even simple ones, so I can make my chains more robust for my team.
Thanks for any advice you can share.
🙏 jane