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Additional check for already existing instance entry at the instance list has failed

Hi Experts ,

I am upgrading ECC EHP 6 from Stack 5 to Stack 12 with SUM 1.0 SP 11 Patch level 5 , while  configuring SHADOW instance in configuration phase , what ever instance number I use I get the following error , I this is on CI , and I have five other app servers in different servers .

ECC6 is on Oracle / AIX 6.2

Error message:

Additional check for already existing instance entry at the instance list has failed

Former Member
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