Shifts: Specific Dates

Question

Shifts: Specific Dates

Martha 10

The "Specific Dates" feature on Shifts has not worked for the last 3 days. The data and history are cleared, and the app is up to date. When selecting "+ Add Availability" under Specific Dates, is shows a blank page. If selecting "Save" it shows 1 time slot. When selecting the 1 time slot, it shows a blank page. Seeking assistance to fix use. I have a team of 20 staff, and we use Shifts to set the monthly schedule.

Maria Banke 0 Reputation points

2026-10-27T15:42:10.17+00:00

Any one get this resolved?
Maria Banke 0 Reputation points

2026-11-05T16:50:00.5666667+00:00

MS responded to our Specific Date Availability not working (black screen) ticket with "No issue found." Still not working for iPhone and android in for all Teams/Shifts apps. Anyone get a better response - the one already listed did nothing for individual devices.

3 answers

Your answer

Maria Banke 0 Reputation points

2026-10-27T15:42:10.17+00:00

Any one get this resolved?
Maria Banke 0 Reputation points

2026-11-05T16:50:00.5666667+00:00

MS responded to our Specific Date Availability not working (black screen) ticket with "No issue found." Still not working for iPhone and android in for all Teams/Shifts apps. Anyone get a better response - the one already listed did nothing for individual devices.

Answer 1

The Microsoft Teams Shifts "Specific Date Availability" blank screen bug is directly tied to the global Exchange Web Services (EWS) deprecation that began on October 1, 2026.

Despite frontline tier-1 support denying the issue, this has been confirmed as a widespread bug affecting organizations globally following the rollout of the EWS phased shutdown. On October 1, 2026, Microsoft officially began blocking default EWS requests and shifted calendar availability lookups over to the Microsoft Graph API. This infrastructure change broke the mobile workflow for adding specific dates in Shifts, causing the app to return a blank page when users hit "+ Add Availability".

The following steps outline why this is happening and how to force your support ticket past Microsoft’s initial denials:

Why the EWS Change Broke Shifts

• The EWSEnabled=Null Flip: On October 1, 2026, Microsoft automatically flipped the backend EWSEnabled parameter from Null to False for tenants. Because legacy Teams Shifts architecture still relied on EWS for certain calendar data syncs, the communication line dropped.

You can then just re-enable EWS by setting EWSEnabled to back Null after it was automatically set to False by Microsoft (after October 1st). Need to change this using PowerShell. There will be a brief service interruption while the change takes effect, but re-enablement remains available until April 1st, 2027.

ANYBODY TRIED THIS AS FIX???

Answer 2

Martha 10

@Maria Banke Not for me and my team.

0 comments

Answer 3

Demi Nguyen 3,030 Independent Advisor

Hello Martha,

Thank you for explaining the issue. I understand that your team relies on Shifts to prepare the monthly schedule, so the blank screen under Specific dates is disrupting an important part of your workflow.

To help me identify whether the issue is specific to one device or affecting the entire team, could you please confirm the following?

Is the affected phone running Android or iOS? Please also provide the phone model and operating system version.
Are all 20 staff members experiencing the same issue, or only one user?
Have you already uninstalled and reinstalled Microsoft Teams?
Could you provide a screenshot of the blank screen after hiding any personal, scheduling, or organizational information?

In the meantime, please sign out of Teams completely, uninstall the application, restart the phone, and reinstall Teams from the Google Play Store or Apple App Store. After signing in again, please test Shifts > Set availability > Specific dates.

Please also try the same account on another mobile device, if available, and ask another team member to check whether the same blank screen appears.

If the issue occurs only on one phone, the problem is concentrated around that device, operating system, or Teams installation. If several staff members experience the same behavior at the same time, please ask your Microsoft 365 administrator to report the issue through Microsoft 365 admin center > Health > Service health > Report an issue and open a support ticket through Help & support. A Microsoft support engineer can then collect diagnostic information and investigate the Shifts service behavior further.

User's image

You can also report the problem directly from the Teams mobile app by opening your profile picture and selecting Settings > Help & feedback > Send feedback > Report a problem.
For your reference: Manage user feedback in Microsoft Teams - Microsoft Teams | Microsoft Learn

Please update me with the device details, the number of affected users, and the results after reinstalling Teams and testing on another device. This information will help determine the most appropriate next step.

Kind regards,

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Martha 10 Reputation points

2026-10-08T12:13:34.12+00:00

Hello Demi, thank you for your answer. My team uses both Android and iOS. Is affecting mostly everyone. I have personally updated 5 iPhones to iOS 27.0.1, updated the Teams App, and delete/reinstall the app. The only device that I have not encounter the issue is Pixel 6a, Android 17. An iOS device with the issue is iphone17, iOS 27.0.1. The IT staff in my organization was not able to support. I added my answer as a post yesterday. My apologies.
Martha 10 Reputation points

2026-10-08T12:23:19.4366667+00:00

Hello Demi,

I have requested for the organization's Microsoft 365 admin to report the issue via health service. I hope the issue can be resolved soon. Thank you for your assistance.
Demi Nguyen 3,030 Reputation points Independent Advisor

2026-10-08T14:23:04.23+00:00

Hi Martha,

Thank you for the detailed update.

Since the issue affects multiple users across different iOS and Android devices, reporting it through Service health and opening a support request is the appropriate next step. This will allow the Microsoft support team to monitor the wider impact, collect the relevant diagnostic information, and investigate the issue further.

I appreciate you asking your Microsoft 365 administrator to report the issue. Please let me know if you receive any updates or additional information from the support team.

Kind regards,
Maria Banke 0 Reputation points

2026-10-09T16:45:06.4966667+00:00

Same problem - all iphones in our organization have been updated with latest Teams and various version of ios (all above the required 8). See Teams calendars fine, but Specific Date Availability not working. When hit +Add Availability just returns blank.
Demi Nguyen 3,030 Reputation points Independent Advisor

2026-10-10T10:32:23.5166667+00:00

Hi Maria Banke,

Since the same issue is affecting multiple users across different iPhones and supported iOS versions, please refer to my previous answer and ask your IT administrator to report the issue through Service health and open a support ticket in the Microsoft 365 admin center.

This will allow Microsoft to monitor the issue, collect diagnostic logs, and investigate why Specific Date Availability is returning a blank screen.

Please let me know if you receive any updates from your IT administrator or Microsoft Support.

Kind regards,
Maria Banke 0 Reputation points

2026-10-16T14:59:34.5866667+00:00

Admin has reported - still no update.
Demi Nguyen 3,030 Reputation points Independent Advisor

2026-10-17T15:00:18.85+00:00

Thank you for the update.

Could you please confirm whether your administrator only reported the issue through Service health, or also opened a Microsoft support ticket through Help & support in the Microsoft 365 admin center?

If a support ticket has already been opened, I recommend allowing Microsoft Support some time to review the case and work directly with your IT administrator. Your administrator can also follow up through the existing ticket for a status update.

If no support ticket has been created yet, please ask the administrator to open one. This will allow a Microsoft support engineer to collect diagnostic logs and investigate the issue in more detail.
Martha 10 Reputation points

2026-10-20T12:47:53.22+00:00
Hello, my organization admin reported the issue both ways. He heard from Microsoft Support. Here's the tracking ID# [Moderator note: Personally Identifiable Information removed]. We receive the following instructions. Which, I have tried on few devices.

Microsoft Support

What’s Next:

Open Teams mobile and clear Shifts app data on an affected device, then sign out of Teams, sign back in, reopen Shifts, and pull down to refresh the schedule before retesting Specific dates. On Android and iOS, this is in Teams > profile picture > Settings > Shifts > Clear Shifts app data; the sign-out/sign-in step is also documented for Shifts refresh issues. [2]

The expected mobile flow is Shifts home > plus icon > Set availability > Specific dates > Add a date, so a blank page at that point indicates the mobile workflow is failing rather than a desktop/web limitation. [1]

Confirm the affected users are adding 10 or fewer dates and test with a single new date entry only, since Specific dates supports up to 10 dates. If one date works but larger sets fail, remove existing specific-date entries and retry in smaller batches. [1]

If the steps above didn’t resolve the issue, please provide the following details:

Does the blank page happen for all users in the same Shifts schedule/team, or only certain users?

After Clear Shifts app data and signing back in, does the issue still occur when adding just one specific date?
Demi Nguyen 3,030 Reputation points Independent Advisor

2026-10-21T15:09:27.3533333+00:00

Hi Martha,

Thank you for the update.

Please continue working directly with Microsoft Support and follow the troubleshooting steps provided through the existing ticket. The support team can collect the relevant diagnostic information and continue investigating the issue with your organization’s administrator.

Please feel free to return and share the outcome once Microsoft Support provides an update or resolution.

Kind regards,
Jennifer Currie 0 Reputation points

2026-10-22T15:57:51.6266667+00:00

What happened to shifts schedules in teams, yesterday it worked fine until 3pm, at 3pm as of November 2 my shifts weeks changed from Monday - Sunday to Sunday - Saturday, I need it to be Monday - Saturday, it even shows in each shifts schedule that start of the week is Monday. anyone know what is going on?