Outage in NMI
Mastercard Processing Issue on TSYS Sierra
Resolved MinorIncident Report
We are currently investigating a potential service incident that may be impacting a small number of merchants processing Mastercard transactions through TSYS Sierra. A further update will be provided shortly.
Components affected
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Latest Updates ( sorted recent to last )
RESOLVED
10 months ago - at 06/20/2025 06:29PM
The previously reported service incident is now resolved and all systems should be back to normal operation. If you continue to have issues, please contact Support.
MONITORING
10 months ago - at 06/20/2025 06:27PM
We have seen no recent occurrences of this issue and we will continue to monitor in order to confirm resolution. We will provide another update shortly.
IDENTIFIED
10 months ago - at 06/20/2025 06:27PM
We have identified the issue impacting Mastercard transactions of merchants on the TSYS (Sierra) processor. The appropriate parties have been informed and are working to resolve. An update will be provided shortly.
INVESTIGATING
10 months ago - at 06/20/2025 11:46AM
We are currently investigating a potential service incident that may be impacting a small number of merchants processing Mastercard transactions through TSYS Sierra. A further update will be provided shortly.
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