Supplier management
Supplier management in projects
delivery dates across all projects under control
- Subcontracts as sub-projects in the schedule
- Status from the supplier instead of a phone call
- Delivery dates of all projects in one view

Summary
Supplier management in projects is the operational part of supplier management: it makes sure that subcontracted work arrives on the date the project schedule needs. Selection, contracts, purchasing and evaluation stay with procurement and the SRM system. Software for supplier management in projects keeps every schedule-relevant subcontract as a task in the plan, lets the supplier report back directly and shows delivery dates and on-time performance across all projects. Linetrack covers exactly this part and is used by companies such as Krüger & Salecker.
59 %
of customers named
manual status requests as the starting problem
100 %
of customers named
lack of transparency as the starting problem
1,512
industrial projects
run in parallel, platform-wide
4,000+
completed
industrial projects, platform-wide
All figures on this page come from a full survey of all productive Linetrack implementations, as of August 2026. Multiple answers were possible for the starting problems.
Definition
What does supplier management include? Six tasks, three systems
Supplier management covers six tasks: selecting and qualifying suppliers, negotiating contracts and terms, processing purchase orders, evaluating suppliers, managing risk and compliance, and coordinating dates and deliverables in the running project. The first five belong to procurement, the SRM and the ERP system. The sixth only arises after the award, inside the project.
That is where Linetrack comes in, and only there. How a subcontract gets into the plan and who does what is shown in the use case integrating suppliers into projects.
- Selection and qualificationSupplier master, audits, approval Procurement / SRM
- Contracts and termsFramework agreements, prices, delivery terms Procurement / SRM
- Purchase order processingOrder, goods receipt, invoice ERP
- Supplier evaluationQuality, price, on-time delivery across all orders Procurement / SRM
- Risk and complianceCertificates, supply chain, second sources Procurement / SRM
- Schedule and deliverable coordinationThe subcontract in the project scheduleLinetrack Project plan
Five tasks have established systems. The sixth falls in between: the SRM does not know the schedule, and in the project plan the supplier is often just a bar with a date.
Context
Strategic and operational supplier management: where the project takes over
Strategic supplier management decides who a company works with: supplier base, selection, framework agreements, development. Operational supplier management makes sure a specific award delivers what was promised. The line between them is the award. Before it, procurement leads; after it, a project with assembly, commissioning and a customer date depends on the delivery date.
In many companies, the operational side belongs to no one in particular. Procurement has placed the order and waits for the confirmation. The project manager knows the assembly date but not where the supplier stands. In between, there are emails.
- Supplier base and selection
- Framework agreements and terms
- Evaluation across all orders
- Subcontract as a task in the plan
- Status reported by the supplier
- Impact on assembly and customer date
How reliably a supplier delivered in the project is one of the most useful inputs for procurement's next evaluation.
The operational level needs the schedule. That is why it belongs in the project system rather than in the SRM.
Symptoms
Where supplier management
breaks down in project business
Rarely because of a single supplier. Usually because of the gap between procurement and the project, which grows with every parallel project.
Two dates, two systems
The ERP holds the delivery date from the order confirmation, the project plan holds the assembly start. Nobody checks whether they still match until one of them slips.


Status requests eat project managers' time
59 % of Linetrack customers named manual status requests as a starting problem. Across company boundaries every request takes longer, because the supplier cannot see the plan.


One supplier, five projects, five requests
A control cabinet builder delivers into several orders at once. Each project manager asks separately, and nobody sees across all projects where the same bottleneck threatens several dates.


On-time performance remains a gut feeling
Which supplier was reliable in the project appears in no report. At the next award, the project manager's memory decides.


Supplier delay
How a supplier delay moves the customer date
A supplier delay rarely stays with the supplier. If assembly depends on the purchased module, commissioning moves with it, and finally the date the customer was promised. Two weeks at the supplier are two weeks at the customer unless something is rescheduled in between.
But you can only reschedule what you know about in time. What matters is when the delay becomes known: when the assembly team is standing in an empty hall, or weeks earlier because the supplier reported it in the plan.
How Linetrack responds to a deviation and which tools are available is described on the page on project control.
The delay surfaces in CW 42, at the planned assembly start. Lead time: 0 weeks.
The control cabinet arrives two weeks late; assembly, commissioning and acceptance move with it, and the customer date in CW 47 is missed by two weeks. Without status in the plan: The delay surfaces in CW 42, at the planned assembly start. Lead time: 0 weeks.
Example values. The delay is the same in both cases. The difference is the time to reschedule assembly or inform the customer early.
Requirements
What software for supplier management in projects has to do
Software for supplier management in projects has to handle six things an SRM or procurement system does not cover, because they require the schedule.
Whatever is missing ends up back in the inbox. The list is also a good test for any tool sold under the label of supplier management.
- Subcontract in the schedule: The awarded work is a task with dependencies, not a date in a list.
- Access for the supplier: The partner sees their requirements and reports back, with no licence cost on their side.
- Visible knock-on effects: When the supplier reports a delay, the dependent tasks move with it up to the customer date.
- All projects in one view: Delivery dates and open status updates across all parallel projects, not one project at a time.
- On-time performance per supplier: The status updates in the project produce a reliable figure for the next award.
- ERP connection: Subcontracts come from the ERP into the plan instead of being entered twice.
Solution
Why Linetrack is the right software for supplier management in projects
Linetrack is project software for industrial companies. The supplier sits in the same plan as your own departments.
Suppliers in the same plan
How a subcontract is created, how the supplier is invited and what they see: the process step by step.


Supplier access without licence cost
Their own area, an email invitation, a free collaboration licence for the partner. The features in detail.


Subcontracts from the ERP
With an ERP connected, selected subcontracts are created automatically as sub-projects in the plan.


USP 1
Subcontracts as sub-projects right inside the schedule
In Linetrack a subcontract is a sub-project with its own tasks, dates and deliverables. It hangs in the plan with the same dependencies as design or assembly. A bar with an end date is not enough for that.
With an ERP connected, selected subcontracts are created in the plan automatically. Which systems can be connected is listed under integrations.

USP 2
The supplier reports, instead of being called
The supplier gets their own area and an invitation by email. There they see their requirements and dates and enter progress, dates and files. Linetrack reminds them automatically when an update is due. The project manager no longer has to chase them by phone.
What the supplier sees, what they don't and how quickly they can start is described on the page integrating suppliers into projects.

USP 3
Delivery dates and on-time performance across all projects
The supplier dashboard shows all integrated suppliers with open tasks, time progress, maturity and on-time performance. Anyone running ten projects in parallel sees which delivery dates are at risk without opening ten plans.
The view follows the same logic as multi-project management in Linetrack: one plan per project, one evaluation across all of them.

Comparison
Supplier coordination by email and ERP or in the project plan
Most companies coordinate subcontracts with what they already have: delivery date in the ERP, project plan in Excel or MS Project, status by email. Where the ERP project module reaches its limits is shown in the comparison with the ERP project module; moving away from spreadsheets is covered in the comparison with Excel.
Industries
Supplier management
by industry
What gets subcontracted depends on the industry. What they share: the delivery date carries part of the project.
Machine and plant engineering
Control cabinets, controls, castings, third-party assembly. Purchased parts often sit on the critical path to commissioning.


Special machine building
Every machine is a one-off, purchased components have long lead times and the schedule leaves little room.


Building and energy technology
Workshop, site and supplier share one project. Other trades and subcontractors sit in the same plan.


Construction and infrastructure
More external than internal parties: subcontractors and trades work one after another at the same site.


FAQ
Frequently asked questions
Any questions?
Book an appointment with our team.
What does supplier management include?
What does supplier management include?
What is the difference between strategic and operational supplier management?
What is the difference between strategic and operational supplier management?
What is the difference between supplier management and supplier relationship management?
What is the difference between supplier management and supplier relationship management?
Which software is suitable for supplier management in projects?
Which software is suitable for supplier management in projects?
Does Linetrack replace SupplyOn, JAGGAER or Onventis?
Does Linetrack replace SupplyOn, JAGGAER or Onventis?
How do you keep track of delivery dates across several projects?
How do you keep track of delivery dates across several projects?
How can you measure suppliers' on-time performance in a project?
How can you measure suppliers' on-time performance in a project?
Are Excel or the ERP enough for supplier management in projects?
Are Excel or the ERP enough for supplier management in projects?
What does software for supplier management in projects cost?
What does software for supplier management in projects cost?
How are supplier management and multi-project management connected?
How are supplier management and multi-project management connected?
How does Linetrack support supplier management in mechanical engineering?
How does Linetrack support supplier management in mechanical engineering?
Case study
When two of three units come from other manufacturers
Krüger & Salecker builds forming machines for the food, pharma and pet food industries. A Compact Line places three units on just under eight metres, two of them from other manufacturers. Design, manufacturing, assembly and commissioning interlock, and part of the line sits with suppliers. In Linetrack each responsible department maintains its element of the work breakdown structure and reports its status there.
How this is set up is described in the Krüger & Salecker case study.
„With Linetrack, we've not only brought transparency to our projects but also significantly increased our productivity.“

Learn more
Linetrack in detail
The features behind coordinating dates and deliverables with suppliers:




















