The action to reserve inventory for ProposalLineItem objects. It does not
overbook inventory unless allowOverbook is set to true.
This action is only applicable for programmatic proposals not using sales management.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-13 UTC."],[],[],null,["# type ReserveProposalLineItems (v202508)\n\n**Service** \n**ProposalLineItemService** **Inheritance** \n[ProposalLineItemAction](/ad-manager/api/reference/v202508/ProposalLineItemService.ProposalLineItemAction) \n▼\n[ArchiveProposalLineItems](/ad-manager/api/reference/v202508/ProposalLineItemService.ArchiveProposalLineItems) [PauseProposalLineItems](/ad-manager/api/reference/v202508/ProposalLineItemService.PauseProposalLineItems) [ReleaseProposalLineItems](/ad-manager/api/reference/v202508/ProposalLineItemService.ReleaseProposalLineItems) **ReserveProposalLineItems** [ResumeProposalLineItems](/ad-manager/api/reference/v202508/ProposalLineItemService.ResumeProposalLineItems) [UnarchiveProposalLineItems](/ad-manager/api/reference/v202508/ProposalLineItemService.UnarchiveProposalLineItems)\n\nThe action to reserve inventory for [ProposalLineItem](/ad-manager/api/reference/v202508/ProposalLineItemService.ProposalLineItem) objects. It does not\noverbook inventory unless [allowOverbook](#allowOverbook) is set to `true`.\nThis action is only applicable for programmatic proposals not using sales management.\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202508`\n\n| Field ----- ||\n|---------------------|-------------------------|\n| **`ProposalLineItemAction` (inherited)** ||\n| **`ReserveProposalLineItems`** ||\n| ### `allowOverbook` | ` `xsd:`boolean` \u003cbr /\u003e |"]]