Data lookup definition not working onchange

[Kiranmai_KVL]

There is a requirement to set a field based on data definition lookup (similar to priority) but as below 

Based on A & B , derive C.

Based on X & Y, derive Z.

And based on C & Z, set the final value in field K.

We created on lookup rules for all the combinations. However  when changing the values of A& B / X & Y, values C & Z is not deriving as expected.. This is affecting the final value in field K. However this issue is intermittent.   

[Saurav11]

Why not wite a onchnange client script instead?

[Kiranmai_KVL]

Usually for data lookup, we dont write on change client script. I have already marked 'Run on form change, run on insert , run on update' to true in the data lookup definition.

[Jonathan Demeul]

Did you manage to fix this? I'm running into the same problem on my UR implementation..

[Allen Andreas]

Hello,

You'd create the definition, tables (extended from correct table), and set your matcher and setter field definitions, ensuring you've followed the guidelines as mentioned in the documentation: https://docs.servicenow.com/bundle/rome-platform-administration/page/administer/field-administration...

Please share what you've done if you're still having issues.

Please mark reply as Helpful/Correct, if applicable. Thanks!