The below error happens in the system during an update/upgrade or daily tasks:
Cardinality "CN" of the foreign key "/SAPSLL/TCOTST"-"STCTS" is not permitted here
INFO: As an example, table /SAPSLL/TCOTST will be used to show how to solve the issue.
SAP NetWeaver 7.50
ACT_UPG, upgrade, update, spam, SPAU, /SAPSLL/TCOTST, STCTS, Cardinality, semantic attribute, wrong foreign key, text , KBA , BC-DWB-DIC , ABAP Dictionary and ABAP CDS , BC-UPG-TLS-TLA , Upgrade tools for ABAP , BC-DWB-DIC-AC , ABAP Dictionary Activation and Conversion , Problem
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