# Configuration Variables with Checkbox mutually exclusive
**URL:** https://www.finalbuilder.com/forums/t/configuration-variables-with-checkbox-mutually-exclusive/5355
**Category:** Discussion
**Created:** [May 21, 2015, 2:29am UTC](https://www.finalbuilder.com/forums/t/configuration-variables-with-checkbox-mutually-exclusive/5355 "2015-05-21T02:29:16Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@chillefeld](https://www.finalbuilder.com/forums/u/chillefeld)
#### Post date: [May 21, 2015, 2:29am UTC](https://www.finalbuilder.com/forums/t/configuration-variables-with-checkbox-mutually-exclusive/5355/1 "2015-05-21T02:29:16Z")
Hi,
in one of our build configurations we have two configuration variables which are set via checkboxes when manually queuing a build of this type.
These two options should not be activated together however. Having both deactived is fine though.
Is there a way we can prevent both checkboxes from being activated in Continua?
Regards,
Christoph
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### Author:  [@Sparky](https://www.finalbuilder.com/forums/u/Sparky)
#### Post date: [May 22, 2015, 1:55am UTC](https://www.finalbuilder.com/forums/t/configuration-variables-with-checkbox-mutually-exclusive/5355/2 "2015-05-22T01:55:09Z")
Hi Christoph,
Continua doesn’t have any way for you to add validation checks to any of the variable prompts. You can however implement similar functionality by using a dropdown select prompt type with three options (option 1, option 2 and neither). e.g.
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### Author:  [@chillefeld](https://www.finalbuilder.com/forums/u/chillefeld)
#### Post date: [May 22, 2015, 7:06am UTC](https://www.finalbuilder.com/forums/t/configuration-variables-with-checkbox-mutually-exclusive/5355/3 "2015-05-22T07:06:54Z")
That would have been my solution too. Thanks for confirming.
Regards
Christoph