# Conditional Rollup **URL:** \ **Category:** Ask for Help\ **Created:** [January 1, 2022, 2:36pm UTC](https://community.glideapps.com/t/conditional-rollup/36560 "2022-01-01T14:36:14Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![Robert\_Petitto](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/robert_petitto/32/25193_2.png) [@Robert\_Petitto](https://community.glideapps.com/u/Robert_Petitto)\ **Post date:** [January 1, 2022, 4:30pm UTC](https://community.glideapps.com/t/conditional-rollup/36560/4 "2022-01-01T16:30:32Z")
Right. A native conditional relation has been requested many times here on the forum, but until it happens, it requires the use of a combination of Glide columns. Upvote: > [@Conditional Relations](https://community.glideapps.com/t/conditional-relations/13818): > > I know myself and others have made this case before, but I’d like to mention it again. I think it would be hugely benificial to be able to apply IF conditions within Relation settings. My use case for this is to get the unpaid dollar amount from unpaid invoices. I have invoices for students that, let’s say, are billed monthly. The user creates the billing period for a particular month, and any lessons that have occured within that billing period are automatically included in that invoice. In… --- _[View the full topic](https://community.glideapps.com/t/conditional-rollup/36560)._