AI-generated Key Takeaways
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A campaign draft can have several statuses reflecting its current state, including PROPOSED, REMOVED, PROMOTING, PROMOTED, and PROMOTE_FAILED.
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The PROPOSED status is the initial state allowing changes without affecting serving, while REMOVED means the draft has been deleted.
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PROMOTING indicates that changes are being merged into the original campaign, which can result in either a PROMOTED status upon successful completion or a PROMOTE_FAILED status if issues occur.
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UNSPECIFIEDandUNKNOWNare general statuses indicating an unspecified or unknown value. 
Possible statuses of a campaign draft.
| Enums | |
|---|---|
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                The status has not been specified. | 
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                Used for return value only. Represents value unknown in this version. | 
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                Initial state of the draft, the advertiser can start adding changes with no effect on serving. | 
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                The campaign draft is removed. | 
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                Advertiser requested to promote draft's changes back into the original campaign. Advertiser can poll the long running operation returned by the promote action to see the status of the promotion. | 
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                The process to merge changes in the draft back to the original campaign has completed successfully. | 
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                The promotion failed after it was partially applied. Promote cannot be attempted again safely, so the issue must be corrected in the original campaign. |