You have multiple accounts
Choose the account you want to sign in with.


Update package

Version number

Service Update 78 for Microsoft Dynamics 365 9.1.0 (or higher)

To determine whether your organization had this update applied, check your Microsoft Dynamics 365 version number. Click the gear icon in the upper-right corner, and then click About.

Please note that an (*) at the end of a fix statement denotes that this repair item was incorporated into multiple service update releases.

Service Update 78 resolves the following issues:

Repaired Functionality

The following list details issues whose resolutions repair items in Dynamics that are not functioning.

Knowledge Management

  • A blank page appeared when an anchor link was selected; and when links to web pages were selected, the page's HTML loaded without JavaScript or CSS.

  • With the October Wave feature bit control enabled, old records and records far in the future did not display in the timeline.*

MidTier Services

  • The BPF/Business Rule designer failed to open when cloud app security was enabled.

  • Users could not proceed from the first business process stage to the second business stage.

Platform Services

  • Files attached to emails sent using an SMTP based email server profile were 0 bytes in size.*

  • Report toolbar buttons were missing for the Arabic and Hebrew languages on the older report viewer controller.

  • Custom workflow activities and plugins generated an error ("Could not load file or assembly…").

  • Some Async Select operations failed.*

  • Some mailboxes failed to send outgoing email (Error: "MS Graph MailboxNotEnabledForRESTAPI").*

  • When sending email from the Portal site, the subject line displayed as "CRM:00000001".*


  • Advanced Find column header data was misaligned.

  • N:N entities could not be added to subgrids in Legacy Unified Interface.


  • Members could not be removed from a marketing list.*

Unified Interface

  • After editing the value of a header dropdown that had an option filed behind it, and moving away from the dropdown, its value changed automatically.

  • New selected views were rendered when "Show Selected Views" was enabled.*

  • Searches performed in offline mode did not function on mobile devices.*

  • The Add Contact ("+") button intermittently disappeared from the Customer entity.*

  • A "searchPlaceholder" string was incorrectly translated with a lower-case "P".

  • A personal view could not be selected when creating a chart.

  • Account and Contact icons did not display with the correct colors.*

  • After users assigned records to themselves, an option to save modifications to the record did not display.*

  • Changes to the Contact form could be saved even when a required field was left empty.

  • Fields of related entities could not be retrieved when using the Dynamics 365 app for Android devices in offline mode.

  • Hyperlinks in the Customer(Regarding) column did not function.

  • Lookup searches on the mobile app did not return any results.

  • Narrator did not read the icon buttons (should read as "button") in the Designer form.*

  • Quick view forms with a subgrid did not refresh when the linked Lookup value was changed.*

  • Subgrids in reference panel tabs did not refresh when switching between them.*

  • The "+" button did not appear on an entity until the page was refreshed.*

  • The Budget Amount in the Opportunity form displayed the wrong currency format (i.e. "$3" instead of "$3.00"), even when Precision was set to "0".

  • The Quick create record in the Quick view form subgrid was not linked with the correct Lookup value.

  • The Save button was visible when a user opened an account record owned by another user.

  • When a solution was exported, single quotes were added automatically to the file's name.*

  • When creating a new email activity, the "To:" field auto-populated, resulting in an exception while saving the email.

  • When using Lookup to search for records, entities that were disabled in "Activity feeds Configuration" were visible.

  • Generic dialog displays when performing multi-entity searches (i.e. "Loading…" or "0x80041103 Query Builder Error.").*

  • Quick Create menu metadata was not guaranteed to be initialized in openForm ClientAPI.*

Error Messages, Exceptions, and Failures

The following list details issues whose resolutions correct actions that produce errors, unhandled exceptions, or system or component failures.


  • An error occurred ("…Attempted to perform an unauthorized operation…") when launching the form editor.


  • An error occurred indicating that solutions being exported were too large, even when they were small.*

Platform Services

  • An unexpected error message displayed when approving email with insufficient permissions.


  • A script error occurred when opening a routing rule item.*

Unified Interface

  • When creating a new email activity, the "To:" field auto-populated, resulting in an exception while saving the email.

  • Grid commands were not visible.*

  • An error occurred when using the Save As command in a personal chart.


The following list details new features and functionality.

Customer Service Hub

  • Service Management is available in this release. For more information regarding the new capabilities click here.

  • Updates to the Customer Service Hub will occur automatically.

Return to Release List

If you have any feedback on the release notes, please provide your thoughts here.

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!