reduced look back bulk download etc

[opbld30]

Docs Build status updates of commit 1fa924a:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
Advertising/bingads-13/bulk-service/account.md	:white_check_mark:Succeeded
Advertising/bingads-13/bulk-service/downloadcampaignsbyaccountids.md	:white_check_mark:Succeeded
Advertising/bingads-13/bulk-service/downloadcampaignsbycampaignids.md	:white_check_mark:Succeeded
Advertising/bingads-13/bulk-service/includes/coming-soon.md	:white_check_mark:Succeeded
Advertising/bingads-13/campaign-management-service/accountproperty.md	:white_check_mark:Succeeded
Advertising/bingads-13/campaign-management-service/includes/coming-soon.md	:white_check_mark:Succeeded
Advertising/bingads-13/guides/release-notes.md	:white_check_mark:Succeeded

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