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Incident Report: Bidding Not Possible on Some WID
PRISMA resolves a bidding issue on within-day auctions by deploying a fix, ensuring enhanced system resilience and transparency for future operations.
Summary
- Title: Bidding not possible on some WID auctions
- Date & Time: Monday 21.07.2025, 18:01h (CEST) - Tuesday 22.07.2025, 08:44h (CEST)
- Affected Services: Bidding for within-day auctions
- Status: resolved
Description
Overview
On Monday 21.07.2025 at approximately 18:01h (CEST), PRISMA was made aware that shippers had problems placing bids in within-day auctions. At this point it was not yet clear, if those were isolated issues, or a platform incident. After additional shippers reported similar problems in the following hours, the classification as platform incident was made at 19:57h (CEST).
Technical Details
Caused by legacy code in the frontend, shippers were not able to place bids by using the “place bid” button on the network point details page. Placing bids via the auction tiles (by accessing the overview of all running auctions) and via the “Auctions at this network point” section on the network point details page was possible during the entire incident.
Scope of Impact
In total 4 shippers reported issues with placing bids. Out of those only one shipper reported that they were not able to place a bid at all. This led to the cancellation of one within-day auction.
Duration of Impact
The total duration of the incident from classification on 21.07.2025, 19:57h (CEST) to resolution on 22.07.2025 08:44h (CEST) was 12 hours and 47 minutes.
The fix for the “place bid” button was deployed on 22.07.2025 16:00h (CEST), restoring full bidding functionality for the “place bid” button on the network point details screen, which is an additional 7h and 16 minutes.
Timeline
|
Date |
Time (CEST) |
Responsible |
Action Type |
Description |
|
21 Jun 2025
|
18:01 |
PRISMA internal |
Send MS Teams message |
Customer Success informed Emergency Guard that 3 shippers reported issues with placing a bid. PRISMA contacted all 3 shippers to provide further information. At this point it was not clear if the shippers were able to place a bid after all and which auctions were affected. |
|
21 Jun 2025 |
21:00 |
PRISMA Emergency Guard |
Take Decision |
Decisions:
|
|
21 Jun 2025 |
21:26 |
PRISMA Emergency Guard |
Publish UMM |
As part of PRISMA’s business continuity measures the Emergency Guard posted a UMM to inform the market about issues with placing bids, including the request to contact Customer Success in case problems are identified. |
|
21 Jun 2025 |
21:48 |
PRISMA Emergency Guard |
Cancel auction |
As part of PRISMA’s business continuity measures the Emergency Guard cancelled the affected auction |
|
21 Jun 2025 |
21:48 |
PRISMA Emergency Guard |
Publish UMM |
As part of PRISMA’s business continuity measures the Emergency Guard posted a UMM to inform the market about the cancellation of auction |
|
22 Jun 2025 |
01:40 |
PRISMA internal |
Call |
Customer Success informed Emergency Guard, based on additional information from shippers, that placing bids is possible via auction tiles (by accessing the overview of all running auctions). Information is given to all shippers that contact Customer Success. |
|
22 Jun 2025 |
08:00 |
PRISMA Emergency Guard |
Analysis |
It was successfully confirmed that placing a bid is possible via auction tiles (by accessing the overview of all running auctions) and via the “Auctions at this network point” section on the network point details page. This information was passed on the engineering for providing a fix.
|
|
22 Jun 2025 |
08:42 |
PRISMA Emergency Guard |
Publish UMM |
As part of PRISMA’s business continuity measures the Emergency Guard posted a UMM to inform the market that the cause of the issue has been found and that bidding is possible via the 2 ways mentioned above. |
|
22 Jun 2025 |
08:44 |
PRISMA Emergency Guard |
Inform TSO contacts |
As part of PRISMA’s business continuity measures the Emergency Guard informed the TSO emergency contacts that the cause of the issue has been found and that bidding is possible via the 2 ways mentioned above. |
|
22 Jun 2025 |
16:00 |
PRISMA internal |
Deploy fix |
After implementation and testing a fix was deployed to PROD. |
Root Cause Analysis (RCA)
Cause: Faulty code in the legacy frontend prohibited users to use the “place bid” button for placing a bid in an auction. After clicking on the button the platform showed an error screen with the information that an unknown error occurred. The general bidding functionality of the platform was not impaired, since placing bids from other parts of the GUI worked throughout the entire incident.
Assessment: Incident was most likely caused by a side effect of an unrelated change and the existing regression and end-to-end tests did not catch the error.
Detection: The problem was identified by a user report. Shippers contacted PRISMA’s Customer Success after experiencing issues with Placing bids.
Resolution & Recovery
Intermediate resolution:
PRISMA pro-actively communicated that bidding is possible via the auction tiles (by accessing the overview of all running auctions) and via the “Auctions at this network point” section on the network point details page. The communication was done by publishing a UMM and by Customer Success, when contacted by shippers.
Long-term resolution:
On 22.07.2025 at 16:00h (CEST) a fix was deployed to production, which corrected the error.
Restoration of service:
The bidding functionality was not fully impaired during the incident. Following the discovery, reproduction, and verification of the frontend error, PRISMA provided guidance to shippers on the frontend locations where bidding remained available.
Preventive Actions:
-
- Expand regression and end-to-end test coverage, to cover bidding-related interactions, including legacy components until they are retired.
- Expand regression and end-to-end test coverage, to cover bidding-related interactions, including legacy components until they are retired.
