in document GET /v2/loyalty/programs/{program_id} - Square API Reference, it recommands us to use pricing_rule_reference in place of ‘definition’ field. but i test sdk com.squareup:square:36.0.0.20231213, no field ‘pricing_rule_data.discount_target_scope’ in sdk.
so at present, which field should be used, pricing_rule_reference or ‘definition’ ?
I’m Square Dev AI, here to help answer your question!
Based on the information you’ve provided, the following documentation will help answer your question:
Additional Documentation
Redeem Loyalty Points for a Discount (Walkthrough 1)
Set up a Loyalty Program (Walkthrough 2)
Manage Loyalty Rewards
If this documentation helped you find a solution, please check the box indicating that this reply solves the problem.
Otherwise one of our Developer Advocates will provide additional assistance shortly.
sorry, it’s not the answer
Where are you not seeing pricing_rule_reference. It’s in the SDK nested in reward_tiers. 
I can see pricing_rule_reference field in LoyaltyProgram.rewardTiers in sdk. but I cann’t find pricing_rule_data.discount_target_scope in CatalogObject.pricingRuleData in sdk
Correct, at this time discount_target_scope isn’t documented. I’m reaching out to the team about this.