This page contains the following information for the Secondary Attendance Data Collection for Summer 2026
The 2026 Attendance Data Collection is now available to run
- Important Dates
- Known Issues
- Resolved Issues
- Read Welsh Government Guidance
- Read the Bromcom Guidance
- Book onto a Secondary Attendance Data Collection Webinar
- Watch Live Webinar Recordings
Access: The permissions required to run and troubleshoot the Attendance Return are found in the Census Module of Config>Setup>Roles and Permissions. Each tick box on the right determines which functions are visible/available on the page for users with the selected Role.

See also: How to get started with Roles & Permissions
Important Dates
Attendance Data is required for the period covering the 2025/26 Academic Year, specifically from 1st September 2025 up to and including 22nd May 2026.
Schools must submit their completed returns via the DEWi system no later than Friday 24th June 2026.
Known Issues
13.05.2026
- Summary report displays different date ranges to the specification (both one day out on the end date)
- New XSLT version 2526.3.4 to be applied which will update Rule 12904, include a new rule 13298, and fix an error in rule 12825.
Bromcom has not yet received the files for the new summary, however, Welsh Government are working on making these available as soon as possible.
For the latest spreadsheet of validations is see here for information on those three changes
Resolved Issues
Check back in this area for Resolved Issues
Read Welsh Government Guidance
IMPORTANT: It is the school’s responsibility to review the Welsh Government guidance to ensure all required information is submitted as part of the Attendance Data Collection.
2025/26 Attendance Data Collection Technical Completion Notes
2025/26 Attendance Data Collection FAQs
Read the Bromcom Guidance
Click on the links below for the Bromcom Wales Secondary Attendance Data Collection 2026 guidance.
Secondary Attendance Data Collection 2026 Guide
Secondary Attendance Data Collection 2026 Error Resolutions Guide
Book onto a Secondary Attendance Data Collection Webinar
Reserve a place on the free Secondary Attendance Data Collection Webinars by clicking here.
Dates:
- Thursday 14th May – 9.30am -10.45am
- Tuesday 19th May – 1.30pm – 2.45pm
Watch Live Webinar Recordings
Check back in this area to watch a Secondary Attendance Data Collection 2026 live webinar recording. You will need to enter your name and email address to view the recording.