I will be writing a new activity driver rule and have some idea of the format of the rule script as it is similar to one written by a consultant. Are there any best practice for this?
The best activity driver rule is one which uses no rule. A data driver is the best. I would say if you can get your data management team to transform the driver data before it gets to PCM that is the best approach.
If that is not possible and/or you have business logic conditions based on structures within you PCM model then work out firstly the selection of data required to run the rule, which dimensions and dimension items will by cycled through to provide data for your rule. Set up RestrictDimensions or RestrictDimensionParent and RestrictCombination on the rules. Here is a good reference. https://wiki.scn.sap.com/wiki/display/CPM/The+use+of+the+RESTRICT+functions+in+PCM+rules
Once you have a done the selection and restricted it, make sure you use the same standards as previous rules like attributes, item properties so that your model maintenance is consistent.
Bluesky
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