NP SoftTech Shopify FAQ
Custom development
Do you develop custom Shopify discount logic?
Yes, when native discounts and public apps cannot express the promotion rules. Custom discount logic is scoped carefully because checkout and cart behaviour are sensitive.
Who this answer is for
Merchants with promotion rules too complex for standard Shopify discounts.
How NP SoftTech approaches it
Promotion rules must be testable. We document stacking behaviour and exclusions.
Rule workshop
Write examples of included and excluded carts.
Native first
Use Shopify discounts when they fit.
Custom when needed
Build only for proven gaps.
Regression tests
Re-test after theme or app changes.
Discovery artefacts
Cart examples, stacking rules and customer segment definitions are required before build.
Risk controls
We avoid fragile cart scripts when Functions or proven apps can own the logic.
Maintenance
Promotion logic needs an owner when campaigns change weekly.
Common mistakes to avoid
Encoding one-off campaign hacks into theme code
Hard-coded hacks become debt by the next campaign.
No documented stacking rules
Support teams cannot explain why a discount failed.
Practical next step
A general answer is only the starting point.
Send rule examples and your store URL. We will recommend native, app or custom discount scope.