How can an Admin prevent users from reconfiguring a specific bundle after initial configuration?

Universal Containers has come to an agreement for future pricing with a specific customer. The agreement is for special volume-based tiered pricing for Product A on all future quotes.
How can this agreement be configured to set the Regular Price for this customer?

Universal Containers has a custom picklist filed with three values on their products. The Admin would like to create a Dynamic Bundle to display products if the picklist value matches that of a Configurations Attribute.
How should the Admin create Filter Product Rules to meet the business requirement?

"When configuring a bundle, Universal Containers users must select Product B and Product C in order to add Maintenance Product A.
How should the CPQ Admin set this up to meet the requirement?
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Universal Containers has come to an agreement for future pricing with a specific customer. The agreement is for special volume-based tiered pricing for Product A on all future quotes.
How can this agreement be configured to set the Regular Price for this customer?