SAP Knowledge Base Article - Public

3353927 - In Maintain Bill of Material app while editing with change number error message appears: "Alternative & for this BOM not valid on &"


In Maintain Bill of Material (F1813) app getting the error message "Alternative & for this BOM not valid on &" when assigning Change Number


  • SAP S/4HANA Cloud
  • Master Data

Reproducing the Issue

  1. Open Maintain Bill of Material app 
  2. Search for a material 
  3. Open the BOM 
  4. Click on Edit with change number
  5. Error message appears


  • There is no Explosion Mode determined in the following SPRO path:

         SPRO -> SAP Reference Image -> Production -> Basic Data -> Bill of Material -> Control Data for Bills of Material -> Determine Explosion Mode

  • And the VALID_TO field in tables STKO and STPO is empty. 


  • Create a new entry in the SPRO Explosion Mode and save it:

         BOM Category - BOM Explosion on HANA Validity Determination ; Explosion Mode - Enable BOM Validity Calculation 

  • Run the report 'CS_BOM_VALID_TO_CALC'  to correct the VALID_TO values in STKO and STPO according to the Resolution part of the KBA 3156190 


See Also

If during the executing of the report the error message CS_BOM_HANA011  "Explosion mode not enabled; check Customizing" occurs,

then please follow the steps of the KBA 2516380 - Error  CS_BOM_HANA011 occurs in report CS_BOM_VALID_TO_CALC

and then run the report again.


PLM-FIO-BOM, F1813, Maintain bill of material, change number, Alternative & for this BOM not valid on &, BOM alternative, error, not valid, not able to change BOM, STKO, STPO, VALID_TO, BOM explosion, determine BOM explosion, SPRO, CS_BOM_VALID_TO_CALC , KBA , PLM-FIO-BOM , Fiori UI for Material BOM , Problem


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