3522293 - (CHK) Did not find entries for 'T002', 'CDPOS', and 'TACOB' in table 'DDNTT_CONV_UC'

When performing System export with Software Provisioning Manager (SAP Note: 1680045), package getting failed with following error:

we can see following errors in the <package>.log file:

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A1EEGEN 000 (CHK) Expected 3 rows from this SELECT, got only 0
A1EEGEN 000 (CHK) Did not find entries for 'T002', 'CDPOS', and 'TACOB' in table 'DDNTT_CONV_UC'
A1EEGEN 000 (CHK) Missing unicode preparation?
A1EEGEN 026 Exit code: "12"
A1 EGEN 005 C:\Program Files\sapinst_instdir\NW700\LM\COPY\MSS\EXP\CENTRAL\AS-ABAP\EXP\R3load.exe: END OF LOG: 20240926125449

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• Installation with Software Provisioning Manager
• OS/DB Independent.
• SAP Netweaver

(CHK) Missing unicode preparation?, (CHK) Did not find entries for 'T002', 'CDPOS', and 'TACOB' in table 'DDNTT_CONV_UC', SWPM, DB EXP, Error103, unicode convert, unicode preparation, sapinst, database export, unicode conversion guide, nametab generation. , KBA , BC-INS-MIG , OS/DB Migrations with SWPM and DB refresh , BC-I18-UNI , Unicode , Problem