I enabled the field id="custom-string1" label = "Sun Family" in EC, but it is not available in a Business rule dropdown.
in other words > Custom String with picklist not available in substring and concatenate functions
Reproducing the Issue
Create, Enable and Maintain a field in EC
in this example
Field = "Sub Family"
> attach a picklist
The field is maintained in Job Info
Now > attempt to create a rule to use the field "Sub Family"
The field is available for selection in “Set”
But the field “Sub Family” it is not available for concatenation
Concatenation is not possible, it does not apply for picklist, FO or GO fields
You can use concat functions for string fields ONLY.
There is no plan to introduce this feature in the near future.
Concatenation Custom field , KBA , LOD-SF-EC-RUL , DO NOT USE - Business Rules & Event Derivation , Problem