Additional features available with option contracts

Regarding Asana, there are differences in the functions available for each contract plan.
I would like to be able to add features that are not included in the plan (that are missing) through an optional contract.
As an example

  1. I want to use more rules in Starter. (+10$/month etc.)
  2. I want to use the SAML function in Advanced. (+5$/month etc.)

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Asana Pricing | Personal, Starter, Advanced, & Enterprise plans • Asana

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