Hello @Psamar13 ,
Once you establish a connection to the Google sheet connector it should display the __PowerAppsId__ column. For it to be recognized by power apps.

If it's not included after establishing the connection to google sheets and selecting the table or sheet. If it's not in the table, please include it manually just the header by typing __PowerAppsId__. After, delete the previous connection and create the connection to google sheet again.

Once you included the connection and the table has the column mentioned it should display properly the values you're looking for.

Hope this helps clarify the doubt, let me know in case you're still facing an issue within it.
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