Which property should we check to verify if a proposition was accepted previously?

The most relevant property to check if a proposition was accepted previously is the pyOutcome property. In the context of Pega Decisioning, a proposition's outcome is essential as it indicates the result of the proposition evaluation — specifically, whether it was accepted or rejected. This information is crucial in understanding past interactions, customer decisions, and outcomes of previous propositions offered to users.

When analyzing a customer's history with propositions, the pyOutcome property provides a clear insight into how each proposition was received. By looking at pyOutcome, decisioning systems can learn from past decisions, enabling more informed future propositions and enhancing personalization efforts.

While other properties like pyResult, pyEvidence, and pyComparison serve their roles within the Pega framework, they do not directly reflect the acceptance status of a proposition in the manner that pyOutcome does. For instance, pyResult can provide a broader picture of the results of evaluations but does not specifically denote whether an offer was accepted. Therefore, focusing on the pyOutcome property is key for determining previous acceptance of propositions.