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SAP Knowledge Base Article - PreviewSymptom
When migrating Material BOMs in Migration cockpit App (F3473), following incorrect behavior occurs.
- Data is created at the database level during the simulation phase.
- Error 29203 "Alternative & already exists in BOM &/&/&" occurs during migration phase.
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Environment
- SAP ERP Logistics (LO)
- SAP S/4 HANA on premise 2025
- SAP S/4 HANA Cloud Private Edition 2025
Product
SAP S/4HANA 2025 ; SAP S/4HANA Cloud Private Edition 2025
Keywords
migration cockpit, material bom, material bom (new), simulate data, migrate data, CSAP_MAT_BOM_MAINTAIN, completed with errors, message 29 203, alternative already exists, DMC_MIG_MAT_BOM, FLG_NO_COMMIT_WORK, s/4hana 2025, staging tables, bom migration error, bom alternative , KBA , LO-MD-BOM , Bills of Material , Known Error
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