Said It Here

Why do Power Automate flows break when EWS is disabled?

Disabling Exchange Web Services blocks legacy protocols used by standard email connectors like Office 365 Outlook. This causes automated workflows such as Power Automate email actions to fail across your tenant unexpectedly.

Overview
People affected3 accounts across 3 forums
Workarounds found6 items attempted
Community agreement8 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

6 items+ Contribute

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Running PowerShell scripts to check organization configurations
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  2. 2
    Manually setting EwsEnabled true per client
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  3. 3
    Building allow-lists and identifying apps using legacy protocols
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  4. 4
    Adding specific connector IDs and application paths to the EwsAllowList configuration.
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  5. 5
    Waiting for bundle or suiteapp owners to handle locked scripts
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  6. 6
    Figuring out which bundles are still actively maintained by vendors and following up with them
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Tried another approach not listed above?+ Share your workaround ↑

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/Netsuite1 person · September 2026

“I just got the banner today that says I need to update all of my 1.0 scripts to 2.1. I have a lot of scripts that use 1.0, but almost all of them are showing as "locked". So I can't edit them anyway.”source ↗

“I also can't tell you how many of these get used on a daily basis either... so I have no idea if these scripts becoming unsupported will have any actual impact.”source ↗

Narrow-Strike-4552 · r/Netsuite · 13 upvotes
r/sysadmin1 person · September 2026

“When I disable EWS for apps in my tenant, except for my allow list, Power Automate flows using the Send an email (V2) action from the Office 365 Outlook connector break.”source ↗

Odd-Cod3753 · r/sysadmin · 4 upvotes
r/msp1 person · September 2026

“EWS report lists Apple as the one and only offender for our tenants.”source ↗

devloz1996 · r/msp · 1 upvotes

Where this came up

r/mspr/Netsuiter/sysadminadministrationautomationcloud-servicesemaillegacy codeplatform updatessoftware migrationsystem administration

People with this problem also raised