Solution : https://service.sap.com/sap/support/notes/597758 (SAP Service marketplace login required)
Key words :
system displays error message c1801, edited class/object assignment, change number terminates, import parameter no_default_values =, export parameter classif_status, class/object assignment, class assignment, runtime error, object dependencies, module cacl_classification_save
Related Notes :
| 631940 | BAPI_OBJCL_CHANGE: Default values are set |
| 598921 | BAPI_OBJCL_CHANGE_KEY: Interface extended |