Azure DevOps - Unexpected token
The login session is timed out & you need to sign in again
Azure Data Factory - Unexpected token
This can appear when you are working with a data factory that is connected to an Azure Deops Repos repository for source control of the work on your data factory pipelines. While saving changes from ADF, the changes are pushed to the relevant branch in Azure Devops Repos.
Cause of the issue
Azure DevOps session which is linked to the ADF has been timed out.
Refresh the session by sign in again from Azure DevOps side. Once refreshed, the changes can be pushed to Azure DevOps Repos by saving the ADF changes.