[28.x] [PEPPOL] Handle unknown persisted PEPPOL format values - #10241
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Milica Đukić (djukicmilica) merged 1 commit intoAug 14, 2026
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## Why A PEPPOL format enum ordinal can remain in the persisted PEPPOL 3.0 Setup after the enum extension that declared it is uninstalled. Converting that unknown ordinal to a PEPPOL interface currently produces a technical runtime error because the base enum has no unknown-value implementation. ## Summary - **Added** unknown-value mappings for every interface implemented by the PEPPOL 3.0 Format enum. - **Added** a controlled handler that tells users to select an available format when validation or document iteration encounters an unavailable format. - **Added** regression coverage for validation and iterator conversion of a persisted unknown ordinal. https://github.com/microsoft/BCQuality/blob/712dee9ec1f0b098f859753e083e8c6efa903d01/microsoft/knowledge/interfaces/handle-unknown-enum-ordinals-with-unknownvalueimplementation.md Fixes [AB#646302](https://dynamicssmb2.visualstudio.com/1fcb79e7-ab07-432a-a3c6-6cf5a88ba4a5/_workitems/edit/646302) --------- Co-authored-by: djukicmilica <milicadjukic@microsoft.com>
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Milica Đukić (djukicmilica)
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Why
A PEPPOL format enum ordinal can remain in the persisted PEPPOL 3.0 Setup after the enum extension that declared it is uninstalled. Converting that unknown ordinal currently produces a technical runtime error because the base enum has no unknown-value implementation.
Summary
Backport of #10066.
Fixes AB#646754