Table 2

Overview of interviewees and documentation and archival records used

Interviewee position (interview ID)ActorHow actors relate to the postponement implementationNo. of interviewsDocumentation and archival records
Logistics project managers, head of distribution network, warehouse contract managerFocal firmKey contacts of the focal firm and leaders of the postponement projects3
  • Standard operating procedures (SOPs) with suppliers

  • Quality guidelines for co-packing, including protocols for product handling, packaging and safety compliance

  • Spreadsheets recorded costs for shippers’ operations

  • Presentations of the year’s plans for sustainability

  • Sustainability analysis and waste reports

  • Email exchanges

Head of Distribution Network (FF-1)Focal firmThe project leader5
Warehouse Contract Manager (FF-2)Focal firmIn charge of operations with supplier C
Third-Party Planner (FF-3)Focal firmIn charge of distribution operations with suppliers A, B and C2
Distribution Costing Analyst (FF-4)Focal firmIn charge of distribution costs relating to postponement2
Logistics Sustainability Lead (FF-5)Focal firmIn charge of transport relating to postponement4
Third-Party Contract Manager (FF-6)Focal firmIn charge of relationship management with Supplier A2
Suppliers’ interviews
Interviewed indirectly through the focal firm’s intervieweesSupplier AProviding co-packing services for the shippers in the past UoA
  • Production approval form process for full-scale shippers’ production

  • Documentation of training processes for co-packing

  • Email exchanges

Client Director (SB-1)Supplier BSupplying the shipper packages in the past and current UoAs3
Operations Manager (SC-1)Supplier CProviding co-packing services for the shippers in the current and future UoAs3
Senior Operations Manager (SC-2)Supplier C
Total no. of interviews and data documentation24 (∼ 320 pages)
Source(s): Authors’ own work

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