# Simple Google Sheet - writing a row

**URL:** https://community.thunkable.com/t/simple-google-sheet-writing-a-row/1789932
**Category:** Questions about Thunkable X
**Tags:** solved, beginner
**Created:** [March 18, 2022, 6:16am UTC](https://community.thunkable.com/t/simple-google-sheet-writing-a-row/1789932 "2022-03-18T06:16:52Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)
#### Post date: [March 18, 2022, 6:23am UTC](https://community.thunkable.com/t/simple-google-sheet-writing-a-row/1789932/2 "2022-03-18T06:23:18Z")

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What happens if you replace the UID value in the create row block with a text string (e.g. “none”)?

If that works, then you probably need to check for a null value in your stored variable:

> [@Store variable stopping my app](https://community.thunkable.com/t/store-variable-stopping-my-app/1528439/4):
>
> Stored variables are a little tricky because they start out with a null value. So you have to do when screen opens → if stored variable = null → set stored variable to [some value]. That value can be zero (0) or an empty string ("") or any other value.

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