Source application where creative was authored.

| Enums ||
|---|---|
| `CREATIVE_AUTHORING_SOURCE_DCM` | DCM-UI or external API used to author the creative. |
| `CREATIVE_AUTHORING_SOURCE_DBM` | DBM-UI used to author the creative. |
| `CREATIVE_AUTHORING_SOURCE_STUDIO` | Studio-UI used to author the creative. |
| `CREATIVE_AUTHORING_SOURCE_GWD` | Google Web Designer used to author the creative. |
| `CREATIVE_AUTHORING_SOURCE_ACS` | ACS-UI used to author the creative. |
| `CREATIVE_AUTHORING_SOURCE_ADOBE` | Creative authoring source is Adobe. |
| `CREATIVE_AUTHORING_SOURCE_TYPEFACE_AI` | Creative authoring source is Typeface.ai. |
| `CREATIVE_AUTHORING_SOURCE_REMBRAND` | Creative authoring source is Rembrand. |
| `CREATIVE_AUTHORING_SOURCE_TRACKTO_STUDIO` | Creative authoring source is Trackto. |
| `CREATIVE_AUTHORING_SOURCE_BORNLOGIC` | Creative authoring source is Bornlogic. |
| `CREATIVE_AUTHORING_SOURCE_BEGEN_AI` | Creative authoring source is BEGEN_AI. |