In order to reduce issues with maintenance of the allowlist, we're planning to move to an allowlist. There are two functions of the allowlist to replace in swatch:

1. Used as a filter when processing a given subscription/product.
2. Used to query the list of products swatch should sync information for (nightly sync).

For (1), we plan to replace the allowlist with a denylist.

For (2), we plan to have the scope of the nightly sync be any product that has a subscription present in subscription watch (these are limited by the allowlist/denylist filter).

The nightly sync would continue to operate until the UMB integration is enabled, in order to capture any changes in SKU attributes.