2026-04-17 Pricing API
context.contract.billing_accountandcontext.contract.paymentrequest fields onPOST /v1/public/external-catalog/productsandPOST /v1/public/external-catalog/product-recommendationschanged from string relation IDs to objects (breaking)context.contract.branchenum constraint removed on the same endpoints; the field now accepts any string instead of only the previous fixed values (power,gas,water,waste_water,district_heating)