Rule engine error - This might never match using looping nodes

[takbb]

Hi @Pranjal_m ,
If you are able to upload a small example workflow that exhibits your issue you’ll probably find more people are able to help. I’ve not personally seen that message before.

You may find this post of interest in terms of an alternative way of handling multiple columns in a “rule engine” although I don’t know if it will exactly fit your use case.

Rule Engine

This one is more luke-warm encoding but here is a new component I’ve been playing with: [image] You give it a set of rules in a single table. I used Excel for this purpose as it was easier to edit. They use exact Rule Engine syntax, and I’ve copied and pasted from all of your rule engines: [image] The biggest limitation would be performance on very large data sets because of the amount of Column Appending it has to do, which can slow things down significantly, especially on a la…