3689052 - Error "Namespace /CASTP/ does not exist" occurs when applying SAP Note 3444644

Symptom

• When applying the manual steps in SAP Note 3444644, the error "Namespace /CASTP/ does not exist" is encountered after selecting the menu option 'Utilities -> Regeneration' for BADI BADI_SD_BILLING.
• The country-specific logic is not functioning correctly, including Poland KSeF DRC, Portugal digital signature, and Croatia Fiscalization.

Environment

SAP S/4HANA 2023

Product

SAP S/4HANA Cloud Private Edition all versions ; SAP S/4HANA all versions

Keywords

invoice printing, output type determination, NAST record, BADI_SD_BILLING, enhancement implementation, custom coding, regeneration, SAP Note 3444644, SAP Note 3564629 , KBA , SD-BIL-IV , Processing Billing Documents , Problem

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