# Having Issue Using Join Table
**URL:** https://www.five.org/t/having-issue-using-join-table/419
**Category:** How do I?
**Created:** [May 6, 2024, 8:26pm UTC](https://www.five.org/t/having-issue-using-join-table/419 "2024-05-06T20:26:12Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@RMittelman](https://www.five.org/u/RMittelman)
#### Post date: [May 6, 2024, 8:26pm UTC](https://www.five.org/t/having-issue-using-join-table/419/1 "2024-05-06T20:26:12Z")
I am trying to have a many-to-many relationship using a join table. The purpose is when setting up a report I can identify which Study Groups should get that report by default.
I’ve added the **ReportGroups** join table containing fields for the ReportKey and StudyGroupKey among others. I added a form for this table, and added a new page to the SetupReports form for a list of Study Groups. So far so good.
But something is going wrong in the application. When I pick the report and go to the Study Groups page and try to add a group, nothing appears in the drop-down list of Study Groups. I’ve had this issue before. I know I’m missing something simple. What’s missing that I can’t add a group to the report?
[BrandeisConejo-20240506-2019340805296.fdf](https://www.five.org/uploads/short-url/3TVD7iubChWHuNL6IzPxdKxs26L.fdf) (4.5 MB)
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### Author:  [@Jo-Anne](https://www.five.org/u/Jo-Anne)
#### Post date: [May 8, 2024, 9:18pm UTC](https://www.five.org/t/having-issue-using-join-table/419/2 "2024-05-08T21:18:07Z")
Hi Ron,
For your Study Group Key field on your Report Groups form, you don’t have a referenced form, you need to add StudyGroups here and then your lookup will work.
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### Author:  [@RMittelman](https://www.five.org/u/RMittelman)
#### Post date: [May 9, 2024, 2:31am UTC](https://www.five.org/t/having-issue-using-join-table/419/3 "2024-05-09T02:31:47Z")
Thanks Jo-Anne! I figured that out also.