There is a way to extend limit of 256 chars in extension prop?

Question

I created a extension in B2C to hold some information and reach up the limit of 256 characters. Can I extend or there is a alternative to extension?

Documentation about: https://learn.microsoft.com/en-us/graph/api/resources/extensionproperty?view=graph-rest-1.0#properties

Answer 1

No, you can't make it bigger.

You could use a StringCollection and store the information over multiple attributes.