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PAVAN 5380
Ground Control | Tier 1
August 4, 2026
Question

Automation Anywhere Excel sign in popup unattended bot

  • August 4, 2026
  • 1 reply
  • 15 views

During unattended Automation Anywhere bot execution, Microsoft Excel (Office 2016) displays a recurring "Sign In" popup asking for Microsoft account credentials to open an Excel workbook. The popup appears repeatedly and interrupts bot execution. The workbook opens through Excel, and the bot runs under a service/robot account on a Windows Server environment. Looking for known causes related to Office authentication, OneDrive/SharePoint integration, Office activation, cached credentials, sensitivity labels, or Automation Anywhere unattended bot execution

1 reply

Dineshkumar Muthu
Flight Specialist | Tier 4
Dineshkumar Muthu
Flight Specialist | Tier 4
August 6, 2026

Hi ​@PAVAN 5380 , 

Windows creates a temporary profile when it can’t load the user’s normal profile (corruption, locked NTUSER.DAT, or permission issues). If the bot logs in under this TEMP profile, Excel won’t find its identity/activation files and will show repeated “Sign In” popups. Check it by running:

Code

echo %USERPROFILE%

If it shows C:\Users\TEMP…, the profile is the root cause.

"Everything fails all the time, so plan for failure and nothing fails" - Werner Vogels ========== Linkedin Profile : https://www.linkedin.com/in/dineshkumar-muthu/
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