How to manage your invoicing with suppliers: checklist, comparison, and tips

The invoicing with suppliers is a critical process because it combines legality, efficiency, and financial control. It is not just a matter of paying: it is equally important to rigorously collect, validate, integrate, and reconcile each invoice. This is even more important in the age of digitalization. That is why, for today's CFOs, working with a powerful and efficient system is not only an advantage but a necessity. If this is your case, here is a checklist, best practices, a comparison of tools, and answers to the most frequently asked questions that most CFOs and executives ask about automated accounting and approvals.

Why invoicing with suppliers is so important

The first thing to clarify is why supplier invoicing is so important today. We are talking about an accounting process that, when done well, has a major direct impact on several areas of any business. Without going any further, it provides:

• Regulatory compliance, as you avoid administrative and financial penalties for late payment or formal errors.
• Operational efficiency, since you free up time and resources to, for example, perform more strategic analyses.
• Strong relationships with suppliers, which stem from compliance with payment agreements.
• Cash flow visibility, which is essential for making responsible financial decisions.

Essential elements for managing invoicing with suppliers

However, in order for this process of payment to suppliers to function securely and efficiently, you must ensure that:

• There is a centralized repository for invoices.
• Automatic validation is performed automatic validation (CIF, IBAN, expiry dates, etc.).
• It integrates with FACe for suppliers regarding public invoices.
• The approval flows are auditable and immediate.
• Work-life balance reconciliation is done with orders, contracts, or delivery notes.
• The following formats are accepted common formats are accepted: Facturae, XML, PDF, etc.
• Alerts are generated alerts for due dates and deadlines.
• Security and backup are guaranteed security and backup (cloud, GDPR).

Common mistakes when invoicing suppliers and how to avoid them

In turn, when managing supplier invoicing, errors tend to be repeated in many companies, regardless of size or sector. Detecting and preventing them saves significant time, money, and resources. 

Based on our experience, we can assure you that the five listed below are the most common mistakes made when invoicing suppliers.

1. Not verifying supplier information

• Problem: Payments made with incorrect bank details or to unauthorized suppliers.
• Solution: Establish a protocol for verifying IBAN and CIF before registering the invoice. If using OCRtechnology, it's even easier.

2. Record duplicate invoices

• Problem: Double payment for the same invoice due to it being received in different formats (paper, PDF, online portal).
• Solution: Use a system with automatic duplicate detection based on invoice number and tax identification number.

3. Failure to reconcile with orders or contracts

• Problem: Payments to suppliers for unauthorized amounts or items.
• Solution: Link each invoice to its purchase order in the ERP before approval.

4. Ignoring the deadlines set forth in the Late Payment Act

• Problem: by failing to meet the stipulated deadlines, you run the risk of penalties and reputational damage as a company.
• Solution: Set up automatic alerts for payments that are approaching their due date.

5. Not using standard electronic formats

• Problem: incompatibility with FACe providers or with the internal ERP.
• Solution: Implement software that is compatible with Facturae and other supported formats.

You can apply each of these five solutions if you work with a solution such as easyap. 

Checklist for choosing an invoicing tool with suppliers

In any case, the aim of this article on invoicing suppliers is to offer a practical overview of how to manage it. So, in line with that, here is a checklist of the technical requirements that efficient software should meet in order to carry out this management:

✓ Compatibility with official formats (Facturae 3.2.2, XML, PDF).
✓ Automaticintegration with FACe suppliers.
✓ OCR and bulk upload.
✓ Customizable approval workflows.
✓ Reconciliation with ERP and accounting systems (SAP, Oracle, Microsoft, etc.).
✓ Report and KPI generation (average times, incidents, amounts, etc.).
✓ Security, encryption, and GDPR compliance.

Good internal practices

At the same time, having the best software is not enough. You should also follow and apply best practices. At easyap, we always recommend these 12 to our customers: 

1. Record invoices on the same day you receive them.
2. Keep the supplier directory up to date.
3. Review outstanding invoices weekly.
4. Negotiate the payment terms before signing the contract.
5. Analyze KPIs monthly to detect bottlenecks.
6. Digitize the process from receipt to archiving.
7. Set up alerts for payment deadlines.
8. Automate initial validations.
9. Integrate the software with your ERP to avoid duplication.
10. Use visual control panels with indicators such as Days Payable Outstanding (DPO) to see the overall status of payments.
11. Periodically evaluate your suppliers based on price, on-time delivery, quality, and ease of billing.
12. Train administrative staff.

Comparison of tools for invoicing suppliers

Now, let's take a look at a comparison of the most efficient invoicing tools available on the market. Specifically, we have compared the four most popular ones: 

Tool	FACe supplier integration	OCR	ERP integration	Main focus
easyap	Yes	Yes	Yes (multiple)	Full cycle automation
Quipu	No	Yes	Limited	Self-employed workers and SMEs
Declaring	No	No	Limited	Tax advice
Eiffage Energy Systems	Yes	No	Yes	Energy and construction sector

As can be seen from the table, easyap stands out. This is mainly because it is cross-functional, offering integration with FACe, full automation, high customization, and multiple ERP integration.

The role of FACe suppliers

At this point, it is also worth mentioning FACe suppliers. This is the mandatory channel for electronic invoicing to the Public Administration. Therefore, as of today, any solution must comply with the criteria of this system or channel:

• Generate and sign invoices in Facturae 3.2.2 format.
• Digitally sign documents.
• Send and automatically track in FACe.

Likewise, its implementation guarantees legal compliance and, at the same time, administrative agility. If you want to know exactly what you need to comply with, the Administration explains it in detail on a dedicated page about FACe. 

Frequently asked questions (FAQ) about invoicing with suppliers

In any case, in this whirlwind of digital transformation, many CFOs and entrepreneurs have certain doubts. So, below we answer the most frequently asked questions, based on the queries we receive at easyap and those asked on Google about the subject.

What information should you check before paying a supplier invoice online?

As with conventional paper invoices, you must validate the following for digital invoices:

• Issuer and recipient details (name, tax identification number, etc.).
• Invoice number.
• Check that there are no duplicates.
• Issue and maturity dates.
• Consistency with the purchase order.

What is the standard workflow for processing an invoice?

1. A purchase order is generated.
2. The invoice is validated against the order and status before payment.
3. The payment is approved and recorded in the accounts.
4. It is archived with complete traceability. 

What are the benefits of fully digitizing the invoicing process with suppliers?

It depends on the sector and the size of the business. However, digitizing invoicing with suppliers offers the following advantages: 

• Real-time recording of invoices.
• Agile validation for approval or return of the same.
• Automation of payment and export to accounting.
• Secure storage and constant monitoring.

In summary, optimizing invoicing with suppliers is an ideal strategy if you want to gain more control, avoid penalties, and strengthen your business relationships. With a checklist like the one we have provided, a tool like easyap , and a renewed vision of digitization, you will transform this process into a lever for competitiveness. Contact us and we will tell you and show you much more.