⚙️AA
Arrangement Architecture — products, properties, activities, reverse-replay, interest calculations, and everything that makes AA the most complex part of T24.
4 articles in this topic.
AA fundamentals
A plain-English introduction to Arrangement Architecture — Product Families, Property Classes, Arrangements, and why changes do nothing until you Proof and Publish.
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Interest in AA is not a field you fill in. It is a property class, a product condition, a payment schedule, and an accrual process — all of which have to be correct, or the wrong number appears silently.
Read the articleAA and COB
Reverse-replay is the most common source of AA production incidents. A back-dated change triggers a full recalculation of the arrangement history. What it does, what triggers it, and how to diagnose it.
Read the articleAA deep dive
AA Property Classes are the categories of behaviour that define what a product can do. Account, Charges, Accounting, Balances, Settlement, Limit — what each one controls, the configuration choices that silently produce wrong results, and how to diagnose them.
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