# Cannot access Relation data at Kanban filter data **URL:** \ **Category:** Ask for Help\ **Created:** [September 5, 2024, 6:47am UTC](https://community.glideapps.com/t/cannot-access-relation-data-at-kanban-filter-data/76145 "2024-09-05T06:47:21Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![ericho](https://avatars.discourse-cdn.com/v4/letter/e/7bcc69/32.png) [@ericho](https://community.glideapps.com/u/ericho)\ **Post date:** [September 5, 2024, 6:47am UTC](https://community.glideapps.com/t/cannot-access-relation-data-at-kanban-filter-data/76145/1 "2024-09-05T06:47:21Z")
Hi, At Task Kanban filter data, I cannot access Robot data although the Task table has relation with Robot table. Please assist. Thank you. ![Task_with_Robot_Relation](https://us1.discourse-cdn.com/flex002/uploads/glideapps/original/3X/0/c/0ca4e39c6878fe2d2f9d3ebc874ce12955a44b06.png) ![Task_Filter_Data](https://us1.discourse-cdn.com/flex002/uploads/glideapps/original/3X/a/a/aabf2cebe7884fcdcdde67d0414acb76ca779dbd.jpeg) ---
**Author:** ![Jeff\_Hager](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/jeff_hager/32/43_2.png) [@Jeff\_Hager](https://community.glideapps.com/u/Jeff_Hager)\ **Post date:** [September 5, 2024, 1:14pm UTC](https://community.glideapps.com/t/cannot-access-relation-data-at-kanban-filter-data/76145/2 "2024-09-05T13:14:18Z")
It’s probably because of the known limitations of using a SQL data source. Filtering against computed columns is one of the limitations. > **[SQL Server | Glide Docs](https://www.glideapps.com/docs/essentials/data-sources/sql-server#aggregation-limitations)** > > Connect to your SQL Server and build database-grade apps and tools. ---
**Author:** ![ericho](https://avatars.discourse-cdn.com/v4/letter/e/7bcc69/32.png) [@ericho](https://community.glideapps.com/u/ericho)\ **Post date:** [September 6, 2024, 8:06am UTC](https://community.glideapps.com/t/cannot-access-relation-data-at-kanban-filter-data/76145/3 "2024-09-06T08:06:51Z")
Thank you very much 🙂