s Parameter

The s parameter is the current string representation of a value from a source.

When running rules, this parameter is processed in sequence. It changes for every rule that is run on the data.

The s parameter is calculated per source. So it is different for each source, with each iteration of a rule

Scenario 1: Applied to source 1 only

Let's say you have an initial Quantity value of 5.

Let's say you have some individual rules running a calculation that adds 5 and rounds to nearest 1.

The rule is only applied to source 1

Rule	's' for source 1	's' for source 2	Display value
[value from source]	5	5	5
Add 5	5	5	10
Add 5	10	5	15
Round to nearest 1.0	15	5	15.0

The parameter is calculated for each individual source. It is not the result of both

What you would see on-screen:

A cell with a blue border around it, because the final value for both sources are different.

Scenario 2: Applied to both sources

If the rule is turned on for both sources, then the result would be this:

Rule	's' for source 1	's' for source 2	Display value
[value from source]	5	5	5
Add 5	5	5	10
Add 5	10	10	15
Round to nearest 1.0	15	15	15.0

What you would see on-screen:

A cell with no border around it, because the final value for both sources are the same.

Import rules only manipulate or use the string value s which is passed to it, for the source that it is enabled for. It does not process the data from both sources, it processes the data for an individual source.