Increase Background function memory

Support
1

Hello,

I am trying to increase the memory of one of our Background Function, as documented here: Configuration for functions | Netlify Docs

I tried adding it in the netlify.toml

[functions.my-function-name-background]
  memory = "2gb"

But as it didn’t have any effect I added it to the Config entry in our function netlify/functions/my-function-name-background.ts

import type { Config } from "@netlify/functions";

...

export const config = {
    method: "POST",
    background: true,
    memory: "2gb",
} satisfies Config & { background: true; memory: "2gb" };

...

export const myFunctionNameBackground = async (
    req: Request,
): Promise<Response> => {

I tried logging the memory with this

console.info(
            `[Runtime] [${instanceId}] Lambda memory limit: ${process.env.AWS_LAMBDA_FUNCTION_MEMORY_SIZE ?? "unknown"} MB`,
        );

and it does output

INFO   [Runtime] [b81ce61c] Lambda memory limit: 1024 MB

Finally, we still see our functions reaching 1024MB, and not 2GB

Duration: 171082 ms	Memory Usage: 1024 MB

We are correctly on the credit based Pro plan.

Is there anything wrong in my setup? Is this setting not supported for background functions?

Thank you!