Skip to content
This is an archived version of the documentation downloaded from LogScale Documentation Archives. Up to date documentation, and documentation for later versions, is available on LogScale Documentation

### Understanding Field Mapping Requirements

When creating field mappings, there are some requirements to be aware of.

- Neither the alias nor the source field can start with `#` or `@`, like #kind or @timestamp. These are Metadata Fields with special meaning in LogScale.

- All aliases must be unique.

- The tag conditions cannot be conflicting. For example, it is not possible to have both `#vendor=A` and `#vendor=B` as conditions on the same mapping. More details on tag conditions are described in Understanding Schema Requirements.

#### Enter search term