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SAP Knowledge Base Article - PreviewSymptom
During an upgrade customers need to logon to shadow instance to perform tasks such as SPDD etc. When firewall settings prohibit the use of new ports, logon to the instance is not possible.
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Environment
SAP ABAP systems
Keywords
RFC connection, shadow instance, logon , KBA , PCO-OPS , ECS TechOps Servicedesk , Problem
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