entail agreement

[shaharhada]

In the link:

Loyalty program - Wikipedia

en.wikipedia.org

the text:
"By presenting a card, customers typically receive either a discount on the current purchase or an allotment of points that they can use for future purchases. Hence, the card is the visible means of implementing a type of what economists call a two-part tariff. Application forms for cards usually entail agreements by the store concerning customer privacy, typically non-disclosure (by the store) of non-aggregate data about customers."
What is entail agreements?

 

[Lafong]

In that context, "entail agreements" would mean something like "any application forms for cards would require an agreement with the store concerning customer privacy"...........................

"entail" is a near synonym for "involve" or "include" or "require" or "encompass" or "necessitate". It is a verb, not an adjective.