SAP Message SMOG058 - Unable to activate index &1. Check the activation log.

Diagnosis
During the activation an error occured.

Procedure
Check the activation log:

  • Call Transaction SE11

  • Enter the table name

  • Press the button 'Indexes...'

  • Select the index that caused the problem

  • From the 'Utilities' menu execute 'Activation log'

    • Resolve the error.