Bhubaneswar: The global outage of Microsoft affected services at the Bhubaneswar Airport today as boarding passes were issued manually.

This apart, arrival and departure of all flights got delayed at the airport due to the issue.

Several airlines took to social media platforms to inform passengers about the outage and advised them to plan their travel accordingly.

"Our digital systems have been impacted temporarily due to the current Microsoft outage resulting in delays. We regret the inconvenience caused and request our guests to plan their travel accordingly," said Air India.

"Our systems are currently impacted by a Microsoft outage, which is also affecting other companies. During this time booking, check-in, access to your boarding pass, and some flights may be impacted. We appreciate your patience," IndiGo said in a statement.

"We are currently experiencing technical challenges with our service provider, affecting online services including booking, check-in, and manage booking functionalities. As a result, we have activated manual check-in and boarding processes across airports. We kindly request passengers with upcoming travel plans to arrive at the airport earlier than usual to complete check-in at our counters. We sincerely regret for any inconvenience this may cause and assure you that our teams are diligently working with our service provider to resolve these issues promptly. Thank you for your patience and co-operation during this time," SpiceJet said.

Microsoft said the issue is due to a recent update of American cyber security company Crowdstrike. It cited a "configuration change in a portion of its Azure backend workloads" as the primary reason.

The outage led to an interruption between storage and compute resources which resulted in connectivity failures that affected downstream Microsoft 365 services dependent on these connections, the company noted.