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Is there any limit on number of properties and value length in Extended Properties of Google Data API (in particular Calendar API)?

Kara
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Muxa
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1 Answers1

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You can add extended properties (arbitrary name-value pairs) to Calendar events. These can be used to store application-specific IDs or other small amounts of information your application needs when interacting with a Google Calendar. The name of a property can contain up to 47 characters, and the value can contain up to 1024 characters. Extended properties are only accessible through the API – they do not appear in the Calendar user interface.

Scott Gerold
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  • They've slightly adjusted their character limits. Here's [the updated doc](https://developers.google.com/calendar/api/guides/extended-properties#limits) – Tyler Dane Jan 24 '22 at 17:13