Please create separate orders for in-stock and pre-order items.
{"id":6747469906072,"title":"Grand Central Scenery T2 - 6\"-7\" Large Pine Trees (5-Pack)","handle":"grand-central-t2-5-large-pine-trees-6-7","description":"","published_at":"2021-05-10T11:33:25-04:00","created_at":"2021-05-10T11:33:25-04:00","vendor":"Grand Central Scenery","type":"Accessories","tags":["accessories","accs_scenic","grand-central-gems","grand-central-scenery","in-stock","scale_o","scenic-supplies","under-50"],"price":2500,"price_min":2500,"price_max":2500,"available":true,"price_varies":false,"compare_at_price":2500,"compare_at_price_min":2500,"compare_at_price_max":2500,"compare_at_price_varies":false,"variants":[{"id":39950195916952,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"GCS_T2","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Grand Central Scenery T2 - 6\"-7\" Large Pine Trees (5-Pack)","public_title":null,"options":["Default Title"],"price":2500,"weight":0,"compare_at_price":2500,"inventory_quantity":3,"inventory_management":"shopify","inventory_policy":"continue","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/1011\/0560\/products\/pine-trees.jpg?v=1620660817"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/0560\/products\/pine-trees.jpg?v=1620660817","options":["Title"],"media":[{"alt":null,"id":22319361851544,"position":1,"preview_image":{"aspect_ratio":1.418,"height":584,"width":828,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/1011\/0560\/products\/pine-trees.jpg?v=1620660817"},"aspect_ratio":1.418,"height":584,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/1011\/0560\/products\/pine-trees.jpg?v=1620660817","width":828}],"requires_selling_plan":false,"selling_plan_groups":[],"content":""}

Grand Central Scenery T2 - 6"-7" Large Pine Trees (5-Pack)