# Custom Actions: Zapier Catch Hook Not Working

**URL:** <https://forum.adalo.com/t/custom-actions-zapier-catch-hook-not-working/1703>\
**Category:** Get Help\
**Created:** [June 4, 2020, 12:19pm UTC](https://forum.adalo.com/t/custom-actions-zapier-catch-hook-not-working/1703 "2020-06-04T12:19:27Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![grid7](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.adalo.com/grid7/32/858_2.png) [@grid7](https://forum.adalo.com/u/grid7)\
**Post date:** [June 6, 2020, 5:41am UTC](https://forum.adalo.com/t/custom-actions-zapier-catch-hook-not-working/1703/4 "2020-06-06T05:41:19Z")

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OK solved. That’s indeed what it was for me as well - comma on the last item = breakage. thanks @mkerp for this tip. FWIW I used this online JSON validator to figure it out: [https://jsonlint.com/](https://jsonlint.com/)

 ![Screen Shot 2020-06-06 at 1.38.51 PM](https://us1.discourse-cdn.com/flex020/uploads/adalo/original/1X/efec9bd196ddb26bef677d398a207c5e327c8020.png)

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