AI-generated Key Takeaways
- 
          This document describes a single operation on a campaign lifecycle goal. 
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          The update_maskfield is optional and determines which resource fields are modified in an update.
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          The operationfield can be either acreateor anupdateoperation on aCampaignLifecycleGoal.
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          For a createoperation, the campaign field must be set, while for anupdateoperation, it should not be set.
A single operation on a campaign lifecycle goal.
| Fields | |
|---|---|
| 
 | Optional. FieldMask that determines which resource fields are modified in an update. | 
| Union field 
 | |
| 
 | Create operation: Create a new campaign lifecycle goal. The campaign field should be set for this operation. | 
| 
 | Update operation: Update an existing campaign lifecycle goal. The campaign field should not be set for this operation. |