AI-generated Key Takeaways
- 
          The request message for MutateAccountBudgetProposal requires a customer ID and an AccountBudgetProposalOperation. 
- 
          The validate_onlyfield allows for validation without executing the request.
Request message for AccountBudgetProposalService.MutateAccountBudgetProposal.
| Fields | |
|---|---|
| 
 | 
 Required. The ID of the customer. | 
| 
 | 
 Required. The operation to perform on an individual account-level budget proposal. | 
| 
 | 
 If true, the request is validated but not executed. Only errors are returned, not results. |