How to Find and Launch a Second Source of Supply in Poland
Delays, recurring non-conformities or a lack of capacity at the current supplier may require an alternative source for an existing part. Identifying a manufacturer is only the first step: you must also confirm that it can comply with the documentation, meet the required volume and quality requirements, and produce consistently.
This publication covers the entire process: from the decision to establish a second source, through identifying and comparing manufacturers, to qualification and the gradual ramp-up of deliveries.
Before starting the project, determine:
- what problem the alternative source is meant to solve;
- whether you need two active manufacturers, a backup supplier or a full transfer;
- whether the documentation unambiguously defines the part and acceptance criteria;
- who on the buyer’s side will approve the new source and how deliveries will be secured until it is operational.
A candidate you have found is not yet a qualified supplier. A quotation sets out proposed commercial terms; by itself, it says nothing about process repeatability. Manufacturer identification must therefore be separated from technical approval of the new source.
When does a supplier problem justify establishing a second source?
Begin evaluating a second source while stock on hand and confirmed inbound supply can still cover the time required to identify, qualify and launch an alternative. Review overdue orders, complaints, stock levels, forecast consumption and a realistic assessment of how quickly the current supplier can recover.
If one process is the capacity bottleneck, another manufacturer may be able to absorb part of the volume. If the problem is a shared, hard-to-source material or an external process, simply adding another facility may not improve supply resilience. In an emergency, qualify the alternative source while simultaneously putting measures in place to maintain supply through the transition.
For quality problems, first establish whether the cause lies in execution or in ambiguous documentation or acceptance criteria. A new manufacturer will not eliminate contradictions in the requirements.
When the price rises, identify whether the driver is material cost, batch size, additional inspection or changed commercial terms.
Then check common points of failure: facility, critical process, material, subcontractor and tooling.
Second supplier, backup source or full production transfer?
An alternative supply source, often referred to as a second source, can serve different functions. Before starting the search, determine whether the second manufacturer should regularly produce part of the volume or remain a backup supplier. This choice affects the minimum viable volume, the manufacturer’s willingness to take part, the cost of keeping the source available and the frequency of readiness checks.
| Model | When to consider it | Condition and limitation |
|---|---|---|
| Two active sources | Regular deliveries are needed and some orders must be transferable between suppliers. | The volume must justify production at both companies, and each company’s available capacity must be confirmed separately. |
| Backup source | Main deliveries are working, but an interruption would have serious consequences. | Maintenance of documentation, tooling and competence, as well as activation conditions, must be agreed. |
| Supplier replacement | The relationship is no longer viable, or the supplier’s performance has not improved enough. | A transfer, qualification and transition-supply plan is required. |
| Single source with safeguards | The cost of qualifying a second source is too high relative to the risk it is intended to reduce. | Consider safety stock, consigned material, process improvement or a design change; each option carries its own cost. |
Part price does not determine its criticality
An inexpensive bracket can stop shipment of an entire machine. Conversely, an expensive part with predictable consumption and easy interchangeability may not require two sources. The assessment should consider the impact of a shortage, recovery time, the replaceability of the component and the effort required for qualification. Annual purchasing value is only one criterion.
A backup source must be kept ready
A sample approved several years ago does not confirm that the backup supplier can still start production. Define how often availability should be reconfirmed, data updated and test orders placed, if applicable. Do not assume that a manufacturer producing a small batch will be able to take over the full volume immediately.
What should be prepared before starting the search?
At the first stage, a description of the application, part type, material, approximate dimensions, volume and expected timing are sufficient. To obtain comparable quotations, give every bidder a consistent documentation package that separates mandatory requirements, preferences and unresolved points.
A 3D model describes geometry, but it may not include material, tolerances, heat treatment or surface requirements. The RFQ package should identify the applicable revision and units and define which document takes precedence if the documents conflict. All bidders must receive the same approved version.
| Requirement | What to provide in the RFQ | What to confirm before approval |
|---|---|---|
| Material and supply condition | Grade, stock form, required properties and documents. | Confirmation of material availability and compliance with the requirements and documentation. |
| Dimensions and critical features | Drawing, measurement datums, tolerances, acceptance conditions. | Agreed measurement method and results for the manufactured part. |
| Surface and additional processes | Coating, preparation, heat treatment, protected areas. | Confirmation of process scope, provider and control method. |
| Volume and batches | Annual demand, batch sizes, frequency and fluctuations. | Fulfilment plan taking account of the required volume and current production load. |
| Quality and traceability | Customer requirements, acceptance documents and marking method. | Proposed inspection plan, required records and method for linking the batch to the documentation. |
Before sending the RFQ, the documentation should be reviewed jointly by purchasing and the person responsible for the technical requirements.
How can the documentation be used to define the right manufacturer profile?
CNC-turned and milled parts
Look for a supplier capable of manufacturing the specific geometry, not a company that simply owns a CNC machine. Tool access, internal radii, pocket depth and thin walls affect manufacturability.
When assessing a supplier, check how the part is located and fixtured at successive machining stages, and whether grinding or further machining after hardening is required. The selection must consider both the ability to manufacture and to measure the most demanding features. A facility suited to frequent changeovers in short runs may not be the right supplier for repeatable high-volume production — and vice versa.
Sheet metal parts and enclosures
When selecting a manufacturer of bent parts, consider the material, thickness, bend length, tooling geometry, installation of fasteners and finishing. The flat pattern depends, among other things, on bend radius and process parameters, so its geometry should be verified with the new supplier.[1]
The project should define post-paint fit requirements, visible surfaces, masking requirements and transport protection. If appearance is important, it is better to agree an assessment standard, inspection conditions and acceptable marks than to use a general term such as “premium quality”.
Frames and welded assemblies
Welding sequence and fixturing affect distortion, so the geometry of the finished assembly should be checked rather than only the individual parts before joining. The acceptance stage, measurement datums and any post-weld machining should also be defined.[2]
ISO 3834-2 specifies comprehensive quality requirements for fusion welding of metallic materials. ISO 3834-2 may be required for qualification if the project or customer specifies it, but the standard reference alone does not define the testing and acceptance scope for a particular frame.[3] The RFQ should also state the structure’s weight, requirements for moving and turning it during production, and processes performed outside the facility.
Related material: CNC machining outsourcing in Poland.
When is Poland a good option — and when is it not?
First exclude facilities that do not meet the requirements for process, material, dimensions, quality or production model. Only among technically suitable manufacturers should cost and logistics be compared.
For cross-border deliveries, define the delivery location, packaging method, shipment frequency and transport responsibility in the RFQ, and account for the applicable customs and tax procedures.
A country’s labour cost level does not determine the price of the part. When comparing quotations, consider technology, process time, changeovers, tooling, scrap, inspection, logistics and the productivity of the specific facility.
A manufacturer in another country may be more advantageous if it has the right tooling, a proven process or the required approvals. Poland is a strong option when suitable manufacturers offer an advantage in cost, lead time or supply resilience, rather than simply because they are located in Poland.
How can candidates be found without sending a confidential drawing to random companies?
Initial screening can be based on process, material, dimensions, volume and quality requirements without sharing the complete documentation. There must still be enough information to assess whether the project fits the manufacturer’s capabilities.
An NDA is only one part of protecting information. Access to files and the way they are shared must also be controlled, and the buyer must ensure that it has the right to provide the documentation to a potential manufacturer.
Before sharing files, it is worth determining who owns the rights to the drawing, model, manufacturing programme and tooling. Buying the parts does not automatically give the buyer rights to all materials used by the previous supplier. If ownership rights or contractual restrictions are unclear, obtain a legal review tailored to the specific case.
Keep a record of recipients, versions and sharing dates. Send approved changes and technical responses to every relevant bidder using the same clearly identified version.
If the project documents use the term “manufacturing programme,” define its meaning and scope before sharing files instead of relying on an assumed interpretation.
How can you verify that a candidate is genuinely suitable as a second source?
Separate two questions: can the facility manufacture the part in accordance with the requirements, and can it, under its current workload, deliver the required volume within the needed timeframe? A machine list does not answer the second question, and a general statement of available capacity does not answer the first.
Ask for a description of the planned process route, bottleneck, launch time and load on the key process. For critical volumes, throughput may need to be confirmed under conditions close to production.
Metrology and certificates: what do they actually confirm?
An ISO 9001 certificate covers an organisation’s quality management system; on its own it does not confirm the ability to manufacture a specific part. For critical features, agree the measurement method, datums, test conditions and appropriate equipment.[4]
Also check external processes. If both sources use the same heat-treatment provider, coater or source of stock material, two contracts do not mean two independent supply chains.
The National Court Register (KRS) allows company registration data and available financial documents to be checked. Each document must be linked to the correct entity and period; a historical financial statement does not confirm current liquidity, and the absence of a document is not in itself evidence of insolvency.[5]
For each criterion, record the verification date and the evidence source — such as public information, a manufacturer declaration, a document or a test result — and state separately whether the point is confirmed or still open.
How should an RFQ be prepared and quotations compared on the same basis?
Comparability starts before enquiries are sent. Define the number of parts, documentation, revision, batches, acceptance requirements and response deadline. Ask the bidder to clearly state deviations and exclusions. A blank field should not be treated as confirmation of compliance.
If the manufacturer proposes an alternative technology or a geometry change, request a separate quotation for that variant and keep the quotation based on the baseline documentation distinct.
| Element | What to standardise | Risk of incorrect assessment |
|---|---|---|
| Unit price | Revision, material, batch size and order forecast. | Comparing different parts or different production assumptions. |
| Launch and tooling | One-off costs, ownership, maintenance and transferability. | A low unit price may conceal substantial upfront costs. |
| Inspection and documentation | Scope of measurements, tests, reports and marking. | One quotation includes acceptance and inspection, the other only manufacturing. |
| Additional processes | Heat treatment, coatings, assembly and responsibility for the complete scope. | Important operations fall outside the price or schedule. |
| Delivery and payment | Location, packaging, transport, currency, payment and quotation validity. | Different delivered and financing costs. |
| Lead time and availability | Start of execution, material availability, required approvals and first-batch size. | A conditional lead time may be wrongly treated as a guaranteed delivery date. |
The lowest price does not determine the supplier choice
The comparison should show compliance, discrepancies and open questions. If a missing item has been estimated, it should be marked as a buyer assumption, not as the supplier’s price. Once differences have been clarified, updated quotations should be obtained rather than basing the recommendation on informal arrangements.
Do you have complete documentation and need the right manufacturers and quotations prepared on the same assumptions? Ask Target Solutions about the scope of candidate identification, initial verification and RFQ support.
How can the cost of a second source be compared with the cost of having no alternative?
Compare options for the same volume and period. TCO should cover one-off qualification and launch costs, the part price, transport and inspection, plus either inventory costs or the cost of keeping a backup source available, as applicable.
In the no-alternative option, include the consequences of a realistic disruption, but do not count the same loss in several line items. If the probability of disruption cannot be estimated credibly, compare several scenarios instead of one ostensibly precise value.
Also check qualification lead time. If launching the new source takes longer than the available stock coverage, starting qualification will not protect against the next supply interruption.
From the first part to stable deliveries
Sample, FAI and PPAP
The sample should demonstrate that the part can be produced to the agreed requirements using the intended production process. Approval of the sample does not yet demonstrate readiness for consistent series production.
Define the scope of FAI according to the applicable sector and customer requirements. FAI (First Article Inspection) documents the conformity of the first article with design and process requirements.[6]
PPAP is used to confirm that part and process requirements can be met under actual production conditions. PPAP (Production Part Approval Process) includes confirmation of conformity with design documentation and the specification.[7]
| Stage | Required result | Who approves |
|---|---|---|
| Selection for RFQ | Preliminary fit of the manufacturer to the requirements, confirmed interest and a list of missing information. | Purchasing, with participation from a technical representative. |
| Technical review | Technical issues resolved, documentation revision confirmed and changes accepted. | Person responsible for the design and requirements. |
| First article | Results of measurements and tests required for the project. | Quality and the buyer’s designated technical representative. |
| Process and pilot batch | Agreed evidence of conformity and throughput, and confirmed closure of non-conformities. | Authorised qualification team and, where required, the end customer. |
| Regular deliveries | Approval to launch, schedule, performance-monitoring method and reaction plan. | Persons designated in the purchasing and quality procedure. |
Audit, production ramp-up and performance monitoring
An audit should focus on specific risks that remain unresolved after document review, technical discussions and trials. Its scope should relate to the process that will actually be used in the project.
After approving the new source, start with an agreed share of the volume and increase the supplier’s share only on the basis of results. Monitor conformity, on-time delivery, response to problems and implementation of agreed changes.
The schedule should show separately the search for companies, collection of quotations, material availability, tooling preparation, trials, approval and achievement of regular deliveries.
In-house search or Target Solutions support?
An in-house team is sufficient if it has the time, market knowledge, relevant contacts and resources to handle technical questions and the RFQ. External support can fill gaps in these resources, but responsibility for the technical requirements must still remain with the designated person on the buyer’s side.
An outsourced search makes most sense when the company has a defined component or part family, a specific business problem and selection criteria. Low volume does not rule out a project if the consequences of a part shortage are high. If documentation still has to be developed or geometry reconstructed before sourcing, the scope of that work should be agreed separately.
The Supplier Sourcing scope may include manufacturer identification, initial verification, contacting companies, RFQ support and structuring the responses. The result should identify recommended candidates, confirmed information, open issues and the next step.
Approval of the documentation, deviations, acceptance criteria and new source remains with persons authorised by the buyer, unless the contract states otherwise.
Submit your second-source requirements
Do you need an alternative manufacturer for an existing part? Send a project description and the available requirements. The scope of supplier sourcing and RFQ support will be agreed before work begins.
Checklist before sending your message
- Company name, country, and the component or part family covered by the enquiry.
- Reason for the search: lead-time, quality or capacity problems; replacement of the current source; or a need to reduce dependency.
- Material, processes and key requirements; drawings, CAD files or a BOM, where these can be shared.
- Volume, batch size, delivery location and expected date of first delivery.
- Whether an NDA is required before sharing the documentation.
Frequently asked questions
When should you establish a second source of supply?
The analysis should begin before inventory and confirmed deliveries fall below the time needed to identify, qualify and launch an alternative source. Warning signs include delays, recurring non-conformities, insufficient capacity or the risk of excessive dependence on a single source.
What information is needed to start a supplier search?
At the outset, an application description, part type, material, approximate dimensions, volume and required timing are sufficient. At a later stage, a consistent documentation package is needed, including revision status, units, requirements and acceptance criteria.
How should an RFQ be prepared so that quotations are comparable?
All bidders should receive the same approved documentation, volumes and batch sizes, acceptance requirements and response deadline. Any deviations and exclusions in the quotations should be stated explicitly.
Is an identified manufacturer already a qualified supplier?
No. The candidate's ability to manufacture the part and the availability of sufficient capacity must be confirmed separately, and approval of a sample does not demonstrate readiness for stable series production.
How can a backup supplier be kept ready?
A backup source requires periodic confirmation of availability, updates to relevant information and, where appropriate, test orders. The ability to produce a small batch should not be assumed to mean that the supplier can immediately take over the entire volume.
Methodology and limitations
Information status: 10 September 2026. This publication uses public institutional sources, descriptions of standards and technical materials. The tables and decision criteria are analytical tools for this publication, not universal requirements for every project. Current capacity at specific facilities was not verified. The scope of Target Solutions services must be confirmed in each quotation, and this publication does not replace supplier qualification or individual legal advice.
Sources
The sources were accessed and verified, within the limits described in the methodology, on 10 September 2026. The links lead to source materials, mainly in English.
- Protolabs. Sheet Metal Bend Radius Guidelines. No publication date.
- TWI. Distortion Control – Prevention by Fabrication Techniques. No publication date; Job Knowledge 036 technical material.
- ISO. ISO 3834-2:2021 — Quality requirements for fusion welding of metallic materials — Part 2: Comprehensive quality requirements. 2021 edition; public description of the standard’s scope.
- ISO. ISO 9001 — Quality management systems — Requirements. Current ISO page and explanations.
- Ministry of Justice. Court Registers Portal — National Court Register. Current registry portal.
- IAQG. 9102 First Article Inspection Requirement. No publication date stated on the page.
- AIAG. Production Part Approval Process. Public overview of the PPAP-4 manual.