# Zapier integration error

**URL:** <https://forum.mautic.org/t/zapier-integration-error/24286>\
**Category:** Mautic 4 Install/Upgrade Support\
**Created:** [May 31, 2022, 7:50am UTC](https://forum.mautic.org/t/zapier-integration-error/24286 "2022-05-31T07:50:08Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![atsatli](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/atsatli/32/6823_2.png) [@atsatli](https://forum.mautic.org/u/atsatli)\
**Post date:** [May 31, 2022, 7:50am UTC](https://forum.mautic.org/t/zapier-integration-error/24286/1 "2022-05-31T07:50:09Z")

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hello there

as i was integrating zapier with mautic to google sheet

as there was error

 ![Screenshot 2022-05-31 at 13.16.20](https://us1.discourse-cdn.com/flex020/uploads/mautic/original/2X/8/8210dd5c62090e11f558f66dbfe445641119fe6b.png)

as i asked zapier support but they replied

 ![image](https://us1.discourse-cdn.com/flex020/uploads/mautic/original/2X/0/0c5cbc5fd8a2847c0c43e1af8e9a4b39998f21fa.png)

as i tried to clear cache and tried some google search but it din make

can any one help me here

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**Author:** ![mikew](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/mikew/32/5156_2.png) [@mikew](https://forum.mautic.org/u/mikew)\
**Post date:** [May 31, 2022, 8:00am UTC](https://forum.mautic.org/t/zapier-integration-error/24286/2 "2022-05-31T08:00:11Z")

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T me this looks like a known issue with the database size of mautic. How many custom fields do you have at the moment ?

I had many fields and what I had to do was change the size of the fields from varchar 255 to varchar90 or something like that.

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<div class="post-metadata">

**Author:** ![atsatli](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/atsatli/32/6823_2.png) [@atsatli](https://forum.mautic.org/u/atsatli)\
**Post date:** [May 31, 2022, 8:12am UTC](https://forum.mautic.org/t/zapier-integration-error/24286/3 "2022-05-31T08:12:06Z")

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where do i find this size and how do i change this

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**Author:** ![barakudahm](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/barakudahm/32/12704_2.png) [@barakudahm](https://forum.mautic.org/u/barakudahm)\
**Post date:** [November 24, 2023, 11:31am UTC](https://forum.mautic.org/t/zapier-integration-error/24286/4 "2023-11-24T11:31:51Z")

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Hi friends!

Has anyone had any authentication errors after updating Zapier?

I was thrown out, the previous Zaps stopped making. Zapier offers to update the connection. In the process of reconnecting, it gives the error “**authentication failed: Looks like I encountered an error (error #500). If I do it again, please report me to the system administrator!**”  
I did such operations as clearing the cache)).  
Mautic v4.4.10  
PHP Version 7.4.33  
I will be grateful for your advice.