# Boolean operation failed union

**URL:** <https://discourse.shapr3d.com/t/boolean-operation-failed-union/36099>\
**Category:** Modeling Questions\
**Created:** [January 18, 2025, 9:09pm UTC](https://discourse.shapr3d.com/t/boolean-operation-failed-union/36099 "2025-01-18T21:09:28Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Occicat](https://avatars.discourse-cdn.com/v4/letter/o/82dd89/32.png) [@Occicat](https://discourse.shapr3d.com/u/Occicat)\
**Post date:** [January 18, 2025, 9:09pm UTC](https://discourse.shapr3d.com/t/boolean-operation-failed-union/36099/1 "2025-01-18T21:09:28Z")

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Boolean operation failed when trying to join ( union ) my object back together. It worked once before but not now. Still trying to get used to the tools but the error isn’t helpful.

I don’t know how to share what I am working on so unfortunately I am thumbs with an iPad.

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**Author:** ![Occicat](https://avatars.discourse-cdn.com/v4/letter/o/82dd89/32.png) [@Occicat](https://discourse.shapr3d.com/u/Occicat)\
**Post date:** [January 18, 2025, 9:11pm UTC](https://discourse.shapr3d.com/t/boolean-operation-failed-union/36099/2 "2025-01-18T21:11:25Z")

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![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/a/e/aea20e191dcc4673fb9ea69f703e15b2002180ff.jpeg)

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**Author:** ![Occicat](https://avatars.discourse-cdn.com/v4/letter/o/82dd89/32.png) [@Occicat](https://discourse.shapr3d.com/u/Occicat)\
**Post date:** [January 18, 2025, 9:22pm UTC](https://discourse.shapr3d.com/t/boolean-operation-failed-union/36099/3 "2025-01-18T21:22:08Z")

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![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/a/c/acac492e2a9fbff54f1d67bcc6a3bb1c4c831637.jpeg)  
No matter what I do it won’t work now and it did earlier. Any ideas

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**Author:** ![Rita](https://avatars.discourse-cdn.com/v4/letter/r/58956e/32.png) [@Rita](https://discourse.shapr3d.com/u/Rita)\
**Post date:** [January 20, 2025, 10:02am UTC](https://discourse.shapr3d.com/t/boolean-operation-failed-union/36099/4 "2025-01-20T10:02:34Z")

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Hi, please share your design with the support team using this [link](https://support.shapr3d.com/hc/en-us/requests/new). Thanks!

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**Author:** ![arroniow](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/arroniow/32/30268_2.png) [@arroniow](https://discourse.shapr3d.com/u/arroniow)\
**Post date:** [January 20, 2025, 3:52pm UTC](https://discourse.shapr3d.com/t/boolean-operation-failed-union/36099/5 "2025-01-20T15:52:07Z")

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Just a thought.  
Your screen shot is showing that you have geometry or operation errors in History.  
Try sorting those out before proceeding with making new bodies.

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**Author:** ![Occicat](https://avatars.discourse-cdn.com/v4/letter/o/82dd89/32.png) [@Occicat](https://discourse.shapr3d.com/u/Occicat)\
**Post date:** [January 20, 2025, 4:12pm UTC](https://discourse.shapr3d.com/t/boolean-operation-failed-union/36099/6 "2025-01-20T16:12:45Z")

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I do not believe that was mentioned in the onboarding video. I’ve been faffing my way through it so far but still wind up with errors. Thanks for the tip

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**Author:** ![Occicat](https://avatars.discourse-cdn.com/v4/letter/o/82dd89/32.png) [@Occicat](https://discourse.shapr3d.com/u/Occicat)\
**Post date:** [January 20, 2025, 4:16pm UTC](https://discourse.shapr3d.com/t/boolean-operation-failed-union/36099/7 "2025-01-20T16:16:38Z")

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Thank you, I tried the link but the account used for this seems to not work now and I saved my credentials when creating and paying for this.

The online username would not work so I tried my email and that took some time to get any email but it seemed to finally work.