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To unlock an instance you need to set it to Active in your aewacs plan management (see Plan management under Domain Settings).
<screenshot rds overview>
Edit Backup Schedule
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This will bring you to a screen that looks like this:
<screenshot edit backup schedule rds>
In here you can select a backup schedule previously created (see Backup Schedules), or you can select “New backup schedule” which will let you create a new one.
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