Size limit for a single shopify meta field

Question

Is there any size limitation on a single Shopify Meta Field.?

like, upto 1kb of data only allowed to store.

Answer 1

Yes. The value is limited to 65,535 characters, the same as a MySQL TEXT column. Keys are limited to 30 characters and the namespace is limited to 20 characters.

https://groups.google.com/forum/#!msg/shopify-app-discuss/os_Ll7PChGg/jpQgOKwSANEJ http://docs.shopify.com/api/metafield#create

Answer 2

The key is limited to 30 characters, and the namespace has a maximum of 20 characters.

Regarding the length of the value, see here:

The current implementation of a metafield value field is a MySQL TEXT column... a TEXT column has a maximum length of 65535 (2^16 - 1) characters. I’m not encouraging you to start storing enormous blobs, but the limit is pretty big.

Also, there is no limit on how many metafields you can have (see here and here).