While performing upgrade using Software Update Manager (SUM), below error is observed in phase PREP_INPUT_CHECK/SUMCHK:
1EETQ399 Last error code set is: The source release '750' is not supported for your SUM version, at least
1EETQ399Xrelease 760 is required.
1EETQ204 Upgrade phase "SUMCHK" aborted with severe errors ("20210312154353")
SAPup broke during phase SUMCHK in module PREP_INPUT_CHECK / Parameter input
Error Message: Last error code set:
The source release '702' is not supported for your SUM version, at least release 760 is required.
Software Update Manager (SUM)
PREP_INPUT_CHECK/SUMCHK, SUM, Software Update Manager, release 760, SUMCHK, PHASES.LOG, sumabap, Parameter input, SUM version, SAPup, source release, not supported for your SUM version , KBA , BC-UPG-RDM , README: Upgrade Supplements , BC-UPG-TLS-TLA , Upgrade tools for ABAP , Problem
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