Description:
when configuring SAP ATC and executing related notes, there are SCI related checks and configurations. When SCI clicks check, there is dbsql_ DUPLICATE_ KEY_ Error report

Error content:
category ABAP programming error
runtime errors dbsql_ DUPLICATE_ KEY_ ERROR
Except. CX_ SY_ OPEN_ SQL_ DB
ABAP Program CL_ SATC_ CI_ CF_ TOOL============CP
Application Component BC-DWB-TOO-ATF

Version: SAP s/4 Hana 2020
SAP_ BASIS 755 SP1

Solution:
execute SAP note first:
2763282 – fkkbix_ BIP: Runtime error DBSQL_ DUPLICATE_ KEY_ ERROR (CX_ SY_ OPEN_ SQL_ DB) during insert on DFKKBIX_ BIP_ CH

If the above notes cannot be executed, it means that your version is already relatively high.
you can directly execute the program:
SATC_ AC_ CLEANUP

Try again after that, and SCI will come out to check the results