AI-generated Key Takeaways
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          A ProposalCompanyAssociation represents a company and its associated contacts linked to a Proposal. 
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          Key fields include companyId,type, andcontactIds, all of which are required except forcontactIds.
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          The typefield specifies the relationship between the company and the proposal, such as PRIMARY_AGENCY, ADVERTISER, or UNKNOWN.
A ProposalCompanyAssociation represents a Company associated with the Proposal and a set of Contact objects belonging to the company.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202508
| Field | |
|---|---|
| 
                            | 
                            The unique ID of the Company associated with the Proposal. This attribute is required. | 
| 
                            | 
                            The association type of the Company and Proposal. Enumerations 
 This attribute is required. | 
| 
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                            |