On-Time Delivery Performance is one of the key metric in Supply Chain which represents customer service levels an organisation is providing with given resources.
Why do we want to measure On-Time Delivery Performance?
It is primary metric in order to drive continuous improvement of service levels and differentiate our service offering from your competitors. It is the best way to understand the lead time requirements of customers.
What is On-Time Delivery Performance?:
- This metric measures on-time performance to customer’s requested ship date (Goods Issue Date) at the sales order line level.
- Schedule line percent on-time and complete to the customer requested date, no penalty for early shipment (-infinite to +0 day window). This varies amongst organisation.
- Measurement is when the order line is due to ship. Total number of lines expected to be shipped during a given period of time vs how many of those lines were on time.
- Total lines shipped include: External customers, third party, inter-company.
What is the Calculation?? (typical)
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On-Time is:  # of order lines that shipped on or before Customer Requested Ship Date  %
Total # of Order lines with Customer Requested Ship Date in Period
Why should we analyse On-Time Delivery Performance?
Detailed analysis of actual performance can reveal :-
- Intermittent failure to meet customer requirements due to problems in the supply chain.
- More fundamental gaps between the customers requirements and the set up of the supply chain to meet those requirements.
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What analysis should be done for On-Time Delivery Performance?
We must root cause the reasons for failure and identify corrective actions. A Pareto analysis of the missed lines should be done atleast daily if not weekly. I would recommend teams should close any fundamental gap between customer requirements, the planned lead time built into the Supply Chain planning and execution system.
To help community I thought it would be good idea to share possible root cause codes which you can use to attribute as root cause of On-Time Delivery performance miss and analyze. Here is 13 key head line root cause codes with further sub headings.
1         Manufactured Part Delay                                       Â
1a                   Capacity – Equipment constraint
1b                   Capacity – Staffing constraint
1c                   Machine Repair
1d                   Tooling / Programming
1e                   Forecasting error
1f                    Engineering Backlog
2         Purchased Part Delay          Â
2a                   Vendor Late – Ordered On Time
2b                   Vendor Late- on Credit Hold
2c                   Container Delay/Import Shipping Delay
3Â Â Â Â Â Â Â Â Â Quality IssueÂ
3a                   Purchased Part
3b                   Manufactured In House
3c                   Inter-Company Part
3d                   Engineering / Documentation/Drawing
4Â Â Â Â Â Â Â Â Â Inter-Company Delay
4a                   Shipped Late – Ordered On Time
4b                   Shipped On Time – Transportation Delay
5Â Â Â Â Â Â Â Â Â Assembly Late
5a                   Capacity Constraint
5b                   Priority Error – Supervisor
5c                   Test Equipment Problem
6         Inventory Adjustment        Â
6a                   Warehouse
6b                   Shop Floor
7         Shipping / Distribution       Â
7a                   Delivery Created Late
7b                   Late / Carryover
7c                   Late / Transportation
7d                   Receiving Delay
8Â Â Â Â Â Â Â Â Â Planning Functions
8a                   Bad Commit Date
8b                   Not Ordered On Time (Purchased)
8c                   Not Released On Time (Manufactured)
8d                   Planner did not reschedule production order
8e                   Planner did not reschedule purchase order
8f                    Planner misjudged reschedule date
8g                   Planning parameters not correct
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9         Data Problems         Â
9a                   Bad B.O.M
9b                   Bad Route
9c                   Other Data Error
10       Export / Ship Complete / Direct    Â
10a                 External Customer Inspection Delay
10b                 Customer / Shipping Instruction Delay
10c                 Line Available – Order Not Complete
10d                 Ship complete designation removed/added
11       Blocked Orders        Â
11a                 Credit Hold
11b                 Delivery Block
12Â Â Â Â Â Â Â Front-End Engineering / New Item
12a                 Order Entry Mistake
12b               Customer request date not correct
12c                 Partial shipment, balance did not drop
12d                 Order Line qty error
12e                 Customer requested future delivery date
13       Customer Requested Date Error    Â
13a                 On-Time Delivery dating error misc.
13b               No date was requested – On-Time Delivery does not match
13c                 Date was requested – customers date not entered in system
In Conclusion I have outline this definition specially for business in manufacturing and distributions of goods and most of the cause codes are related to manufacturing business. Non-manufacturing business may have their own root cause codes, but logic should be same.
Please do let me know if I have missed any possible root cause codes for On-Time Delivery Performance miss in manufacturing environment?
About the Author-Â Dr Muddassir Ahmed
Dr MuddassirAhmed is the Founder & CEO of SCMDOJO. He is a global speaker, vlogger and supply chain industry expert with 17 years of experience in the Manufacturing Industry in the UK, Europe, the Middle East and South East Asia in various Supply Chain leadership roles.  Dr. Muddassir has received a PhD in Management Science from Lancaster University Management School. Muddassir is a Six Sigma black belt and founded the leading supply chain platform SCMDOJO to enable supply chain professionals and teams to thrive by providing best-in-class knowledge content, tools and access to experts.
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