Solution : https://service.sap.com/sap/support/notes/421649 (SAP Service marketplace login required)
Key words :
key-field tcg02-mandt missing, key-field tcg22-mandt missing, directory '/general/r3server/abap/note/0421649', packed directory structure, repair severe errors, manually add ehs, installed add-ons, fixing-patch phase, phase fixing-patch, including support package
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