Implement a Centralized Purchasing Policy in Less Than 30 Days

    by ProcureDeskLast Updated : Jan-26-2021

    A centralized purchasing strategy is not ideal for all businesses.

    THIS strategy is for companies with multiple locations and is looking to increase the maturity of their procurement processes.

    It’s the exact strategy our clients have used to go from chaos to a well-run purchasing process that scales across multiple locations.

    If you want to reduce the time spent on processing purchase orders, save 8-10% on your vendor cost, then THIS is the centralized purchasing strategy to do it.

    Grab our centralized purchasing policy template below to see the exact steps from the strategy.


    Then read on to how to use the template to build a case for a centralized purchasing policy.

    What is centralized purchasing?

    Centralized purchasing is a procurement model where the purchasing decisions and execution is centralized to a single team instead of each location making its own decision. 

    On the contrary, a central team does not make the purchasing decisions in a decentralized model. But the individual departments/locations make their own purchasing decisions.

    The most common scenario for a decentralized purchasing process is the case where you have multiple physical locations, and each is making its own purchasing decision.

    However, it is not uncommon to see a decentralized purchasing process even within a single location. In this case, each department within the organization might be making its own purchasing decisions. 

    In a centralized purchasing model, a central team is responsible for making purchasing decisions. Here are some of the activities that get centralized.

    Centralized Purchasing Policy

    1. Where to purchase from?

    In a centralized purchasing environment, the supplier selection process is centralized. A single team is responsible for looking at all the purchasing needs. 

    For example, let’s assume that each location is purchasing office supplies from its preferred vendor. 

    You can consolidate these purchases to a single supplier with a centralized purchasing process and get better pricing and better terms.

    2. What products to purchase?

    When you have a centralized environment, the products get standardized. That not only simplifies the purchasing but it does also lead to better pricing due to volume discounts. 

    Let us explain with an example.

    Let’s say each location is purchasing different types of copier papers. The paper is the same except for how thick it is.

    One costs $32/pack, and the other costs $35/pack.

    If the thin paper works for one location, it would most likely work for the other location.

    So by standardizing the items, you not only saved $3/pack, but you also could get better pricing on the original $32/pack pricing. 

    3. Compliance 

    Compliance includes negotiations, contracts, etc.

    For example, do you need to have three bids before you can select a new vendor?

    In a decentralized environment, this process is difficult to enforce and monitor.

    In a centralized environment, you can assign this responsibility to a central procurement department. This not only reduces the compliance cost but also helps control maverick spending.

    4. Purchasing process

    The purchasing process gets standardized because there is one process for purchasing and communicating with vendors.

    For example, you might implement a new purchasing system that standardizes how everyone creates purchase requests. That also standardizes how a PO is sent to the vendor.

    As a result, you also simplify the downstream invoicing process

    Where does the centralized purchasing process make sense?

    The centralized process makes sense in the following scenarios

    1. Strong overlap of the items purchased across multiple locations.
    2. Some overlap between the vendors.
    3. You can take advantage of volume in your price negotiations.
    4. There is room to standardize the items because each location does the same thing but has non-standardized parts. 

    Examples where it doesn’t make sense

    A centralized process doesn’t make sense if each location/business unit has its own very unique needs. Look for these red flags.

      1. Limited overlap between suppliers.
      2. No overlap between items purchased.
      3. Different concentrations of type of purchases, for example – materials vs. services.
      4. Each business unit has its own P&L. If there is no central control, consolidation is a tough sell. 

    Bonus: We have put together a template that helps you identify the cost savings opportunities by consolidating Spend using a centralized purchasing strategy. Click here to download the template for free.

    Centralized vs. non-centralized purchasing?

    If you are still not convinced what model is suitable for now, then here is a quick comparison of key points for centralized and non-centralized purchasing models.


    Centralized purchasing

    Non-centralized purchasing

    Procurement is centrally managed by a team or an individual who is responsible for all purchasing needs. Each location or department is responsible for managing its purchasing.
    A standardized purchasing process across the entire company. Different purchasing processes across the company.
    Allow you to centralize the negotiation and get volume discounts. You lose volume discounts because the purchasing is not consolidated.
    It takes time to implement and get stakeholder buy-in. No stakeholder buy-in is required as each department/location/business unit can have its process.
    Need centralized tools for purchasing to streamline the process. The process could be manual without the need for a purchasing tool.
    Allows you to standardize parts and increase supply chain resilience. There could be multiple versions of the same item, and you probably carry a lot of inventory.
    The vendor selection process takes time as multiple stakeholders need to be consulted. The vendor selection process is more straightforward because the decision is made only by a limited set of people. 
    It might be overkill when you are getting started. The process is agile and suited when you are just getting started. 


    How to implement a centralized purchasing model?

    Here is the step-by-step process.

    If you want to follow along with the steps, just download the template.


    Then load the last 12 months of Spend history to get started.

    Quantifying the value of centralized purchasing

    The first step is to assess whether a centralized purchasing process makes sense for your company. 

    So let’s do some analysis.

    First, you need your Spend history for the last 12 months. 

    The ideal place to get that is from the accounting/ERP system.

    You can get the Purchase order data or Invoice data for your analysis

    You would need the following fields

    1. Item #
    2. Item description
    3. Supplier name
    4. Unit quantity 
    5. UOM
    6. Unit price
    7. Location name

    More information is better, but it is a good start if you get at least this information.

    The next step is to identify opportunities where moving to a central purchasing process would help the organization.

    Before getting started, identify everyday items into buckets (a.k.a categories) to make it easy for analysis.

    For example – all items that are laptops are categorized as laptops.

    Bonus: We have put together a template that helps you identify the cost savings opportunities by consolidating Spend using a centralized purchasing strategy. Click here to download the template for free.


    Step 1: Identifying the opportunity for cost savings

    Now let’s look at how you go about identifying cost-saving potential due to centralizing the purchasing policy.

    Identify common suppliers

    A centralized purchasing process/policy is very beneficial when you have overlapping suppliers. 

    For example, If you purchase laptops from Dell at multiple locations, centralizing the negotiation process is probably a good idea.

    Here is an example of how that would look 


    The obvious benefit is that you would reduce the cost through better discounts due to increased volume.

    Identify common items

    We can use the same process we used for suppliers to identify the opportunities for overlapping items.

    Purchased items can be divided into two subcategories.

    1. Items that are non-standard but can be standardized.

    These are the items that are non-standard across locations. Let’s take a simple example of copy paper. There are different types of paper.

    For simplicity’s sake, let’s take an example of an 8.5 x 11 paper from 

    They both have the exact count of sheets. But one is almost a dollar more.

    What if you standardize these items to $29.98 item? Then you are saving $1.02

    That is an elementary example, but the idea here is to identify items that can be standardized to a standard model.

    You don’t need to purchase ten different types of staplers!

    2. Items that are standard but purchased from different vendors

    Similarly, let’s say you purchase the same/similar items from two different vendors at two different price points.

    You can standardize the vendor and item by centralizing the purchasing process that could drive potential cost savings.

    Let’s take the example of gloves.

    For example – the following item is available at and Safety Company (You can replace it with your vendors).

    The same item is available at different price points. Amazon sells it at 25 cents per piece, and Safety company sells the same product at half of that cost.

    To quantify the total opportunity, you can multiply the annual quantity by the price difference.

    For example, if you purchase 10,000 gloves in a year across all locations. You can save $1,248/year on this single item. 

    Now compile all the opportunities like this. 



    Once you have consolidated the opportunities, you are ready to go to the next step. 

    Bonus: Download the template here

    Step 2: Presenting the opportunity 

    In this step, you present the opportunity to get the blessing to move to a centralized model.

    Let’s first identify who your stakeholders are

    Identifying your stakeholders

    This could be as simple as talking to the company’s owner or as complex as talking to different operations heads.

    Whatever the size of your company, document the list of your stakeholders as follows:



    Name: The name of the person

    Title: What is their official title.

    Why they care: This is your assumption on why they care about whether the purchasing is centralized or not.

    Role in decision making: The idea is to identify which stakeholders are essential in decision making.

    You could divide that into two buckets.

    1. Consulted: These are your decision-makers. You need to get their agreement to move forward or get consensus in their group.
    2. Informed: You need to inform them about the process for buy-in, but they are not necessarily the decision-maker.

    You could make these decisions based on the Spend for each location or different business units.

    Getting ready to present the opportunities

    Now you identified the stakeholders, and you have identified the opportunities. 

    Now it is time to call the stakeholder and present your findings. 

    Here is what to include in the presentation.


    1. Objectives

    We recommend not starting with cost savings though that is one of the objectives.

    Depending on your audience, you can adjust the objectives. For example:

    1. Drive better employee experience and efficiency by centralizing the purchasing process.
    2. Ensure better compliance to cost control.
    3. Deliver better cost savings for the company by centralizing the purchasing volume.

    2. Opportunities

    This slide lists all the cost-saving opportunities you have identified so far.

    Don’t present unique opportunities, instead present a consolidated view of the savings.

    For example:

    Vendor consolidation: $XXXX/Year

    Item standardization: $XXXXX/year

    Headcount reduction: $XXXXXX/year

    Then provide an example of each so that the audience can relate to how the savings are calculated.

    Be prepared to open your spreadsheet to show the math behind the numbers.

    3. Challenges

    Here you want to talk about the challenges you would face and what you need to implement the centralized purchasing policy successfully.

    The idea is to present the roadblocks so that you can garner support from key executives.

    Some examples 

    1. Need support for all stakeholders to drive adoption.
    2. A centralized purchasing process requires the adoption of a centralized purchasing policy across the company.

     4. Resource Requirements/Investments 

    In this section, you are going to cover the resource requirements for centralizing the purchasing process. 

    If you can quantify the resources, that is always better than saying I need resources!

    Here are some examples

    1. Hire and build a central procurement team. We need to hire X headcount at an average cost of $XXXX/year.
    2. We need to invest in technology so that we can quickly implement a centralized purchasing process. The expected cost is $xxxx/year.

    5. High-level business case

    You can get fancy if you like, but a simple payback period would do the job.

    Here is a screenshot from the template

    Cost return template

    Bonus: We have put together a template that helps you identify the cost savings opportunities by consolidating Spend using a centralized purchasing strategy. Click
    to download the template for free


    Step 3: Implementation model – how you plan on implementing the purchasing policy.

    I am assuming that you got the go-ahead to move to a central purchasing model. The final step in the process is to come up with an operational model to implement a central purchasing policy.

    In the previous step, we talked about the resources required to implement a central purchasing policy. This step is the execution plan.

    Purchasing policy

    If you have not done this already, set up a purchasing policy so that everyone is aware of how the new purchasing process is going to work.

    If you don’t have a purchasing policy, download our template and get started with that.

    Download purchasing policy template

    Here are the key sections that are covered in the purchasing policy template:



    We have already covered this topic in detail; please read more on “Purchasing Policy For CFO’s.

    The main idea here is that the purchasing policy should cover the new process, especially the following. 

    1. How the new suppliers would be set up, and what is the vendor selection process. Define the role of a central purchasing department in vendor selection and vendor relationship management.
    2. How centralizing purchasing would work. Primarily, what is the approval process? Who needs to approve the requisitions before purchasing can create the purchase order.
    3. How employees can engage with the central procurement team. If you have certain thresholds for the central purchasing team, this is a good place to define that. 
    4. It is also essential to cover the process for suppliers to send invoices to the AP (Accounts Payable) team.


    Once the policy is in place, you need to communicate the new policy to your employees. 

    You can’t assume that employees would read the purchasing policy.

    Create a one-pager/cheat sheet that talks about the key focus areas for the new purchasing policy. For example:

    1. Approvals
    2. Purchase process
    3. Invoices process

    Few suggestions on communicating the policy.


    Ask your stakeholders to send the communication out to their team. They can use the one-pager you have created or create their summary of the changes.

    Ask your stakeholders to encourage the employees to reach out to the purchasing team with any questions. 

    Internal communication 

    If you have a company-wide communication channel, such as an intranet site or weekly newsletter, you can use that channel to communicate the new policy.

    Publish the one-pager there along with the primary policy. 

    Focussed communication 

    In some cases, you probably need to take a focused approach to communication. 

    There are always employees/teams who would not follow the policy. 

    It could be that they need more information or they just don’t like to follow the rules!

    Use the 80/20 rule here; focus on the 20% of the stakeholders contributing to 80% of the spending. 

    If you got that 20% covered, you would start realizing the benefits of centralized purchasing. 

    Once you get these 20% working with you, you can focus on the other non-conformance issues. 

    Hiring plan

    If you need to hire a team to centralize the purchasing process, you need to develop a hiring plan.

    If you already have a team, skip to the next section.

    Here are the essential skills you would need in your next hire

    Empathy: Yes, that seems obvious, but it would be surprised how many procurement professionals don’t have empathy towards their stakeholders. 

    All they care about is cost savings. Cost savings come from working closely with your stakeholders, and for that, you need empathy.

    Negotiation: The next critical skill is the ability to negotiate the cost with your suppliers.

    Some sourcing professionals take the “hammer approach” to negotiation. I.e., Supplier needs to reduce the cost, and I don’t care how they do it.

    The other approach is “collaborative negotiation.” In this approach, you still get to the result, but here are you considering the other party’s needs and coming up with a win-win solution.

    Please don’t mistake win-win for a compromise. There are a lot of good books you can read on procurement. Here are our top recommended procurement books

    Analytical skills: The procurement team should have the skills to take the raw data and slice and dice it to identify saving opportunities.

    For example, doing a Pareto analysis on your top spend items.

    Or build a should cost model to know what you should be paying for a particular product or service.

    A should cost model requires analytical skills and the ability to research the market to identify the cost components. 

    If you would like to read more on building a procurement team, we have covered this topic in detail.

    More on this topic, read how to build a procurement team


    Do you need automation to make the centralized process more efficient?

    It depends on how complex your purchasing process is.

    We help companies with the automation of the purchasing process, so our opinion is biased.

    Here are some of the questions you can answer to figure out if you need automation.

    Does the current process support a centralized purchasing model?

    If all you do is create purchase orders on spreadsheets, then yes, that process will not scale. 

    However, if you have some level of automation, you might be able to scale the current process.

    Do you have a way to implement negotiated price?

    One of the main benefits of the centralized purchasing policy is that you can now consolidate the purchasing volume and get better pricing discounts.

    But if you have no way to ensure that employees purchase from those vendors, you would not reap the reward of cost savings. 

    Do you have a way to implement a streamlined process across the company?

    You can think of this as – do you have a process so that everyone is going to create purchase orders for their purchase.

    Does the current invoicing process scale? In other words, do you have a process to ensure that all your suppliers submit invoices to a central place?

    If you would like to see how ProcureDesk can help with centralizing the purchasing policy, click here to schedule a demo with one of our Procure to Pay experts.


    High-level timelines 

    The last step is to identify the high-level timelines for the implementation of the new centralized purchasing policy.




    You can think of this as an execution plan for the vision you have painted to the stakeholders.

    We recommend that you break down the timelines in the following sections 

    Design & Hiring

    This section includes the design of the policy as well hiring required to support the centralized purchasing process. 

    Our experience shows that it takes more time to align the purchasing process across multiple entities.

    Factor in a few weeks to get feedback, make changes to the policy, and then get the final alignment on the policy.

    All stakeholders across different entities need to be aligned to a standard policy for this to work.

    Factor in 8-12 weeks for hiring and onboarding in case of an external hire. 

    For an internal hire, this process could be as short as 4-6 weeks.


    The implementation step includes operationalizing the policy. This includes executing the communication plan, setting up processes to support the centralized policy.

    If procurement technology is part of your initial rollout, that needs to be part of your implementation plan. 

    Our recommendation is to get some wins first and then spend time automating the process. 

    That way, stakeholders are bought in because they see the results, and you can use that momentum to ask for investment in technology.

    Results alignment

    By result alignment, we mean the process to validate the savings with the different stakeholders.

    Let’s say you implemented the centralized purchasing process. Your team negotiated a central contract that resulted in 10% cost savings.

    Do all departments, business units agree with those savings?

    So the idea of results alignment is to make sure that the different departments agree with the results delivered by the team. 

    Usually, this alignment needs to be done with the finance team, but businesses need to buy in the value delivered by this process.

    We recommend you do this after the first significant cost savings negotiation.

    The sooner you do this, the sooner they buy in the process.

    Technology Implementation

    The biggest issue with implementing a centralized purchasing policy is compliance with that policy.

    It’s not always the case that employees don’t want to follow the policy.

    Sometimes they don’t even know who the preferred vendors are and what the process is. 

    So instead of constant communication about the policy, try building the policy in the tool and drive people towards the tool. 

    We recommend automating the approval process and building catalogs so that the users can easily find what they need to purchase.

    Now You Try It!

    Every growing business needs a centralized purchasing policy so that you can leverage the combined value to get better cost savings. 

    Our clients have used this approach to 

    1. Control spending by ensuring that all purchasing requests are reviewed at the right level.
    2. Reduced time spent on processing purchase orders by 30-50% because of the streamlined process.
    3. Save 5-10% on their annual spend by negotiating better cost savings by aggregating volume.

    So go ahead and download the template and use this approach to implement a centralized purchasing policy. 


    What you should do now

    Whenever you’re ready… here are 4 ways we can help you scale your purchasing and Accounts payable process.

    1. Claim your Free Strategy Session. If you’d like to work with us to implement a process to control spending, and spend less time matching invoices, claim your Free Strategy Session. One of our process experts will understand your current purchasing situation and then suggest practical strategies to reduce the purchase order approval cycle.
    2. If you’d like to know the maturity of your purchasing process, download our purchasing process grader and identify exactly what you should be working on next to improve your purchasing and AP process.
    3. If you’d like to enhance your knowledgeabout the purchasing process, check out our blog or Resources section.
    4. If you know another professional who’d enjoy reading this page, share it with them via email, Linkedin, Twitter.
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