In simple terms, 'the comparison procedure - detail control" is where you build the rule sets for address and text string comparisons.
Detailed control enables to specify the logic by which system will perform SPL check. For e.g.: which address elements are valid in an SPL check and which have to correspond to specific circumstances.
The following is an old document, but it explains it very well and provides you with the step by step configuration flow and pre-requisites.
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