Limiting members to only one record (entry) in a collection.

There is any way to limit the members entries in a random collection to only 1(one).
I created a collection based on a form submission only for members. I want to limit each member to only one entry (record / row) in it. If there is a code for this, can someone please help me.

Hello.

You can use data hooks as per this example:
https://www.wix.com/corvid/forum/community-discussion/example-no-database-duplicates

Good luck!