Customer – a natural or legal person receiving services, goods, etc. from a supplier.
Supplier – a natural or legal person providing services, goods, etc. to a customer.
Customer and supplier contracts are used for automatic invoicing at regular, or irregular, intervals based on the use or provision of services.
Under customer contracts, you are the supplier and you generate invoices for your customers based on defined contracts — these are outgoing invoices. Based on these, your customer sends you payment for the service or goods provided.
With supplier contracts, you are the customer and you have a contract with your suppliers for a service (or goods) for which you pay a certain amount. Based on this, suppliers send you invoices (from your perspective, these are incoming invoices), or the ABRA Flexi system generates invoices automatically (for example, when you regularly pay 1,000 CZK per month for a service).
Customer and supplier contracts are managed using the Customer Contracts and Supplier Contracts forms in the Business Partners module.
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Example
Using a simple example, we will walk through a practical demonstration of regular monthly invoicing in advance:
First, we create a contract type and configure the following fields:
Name | ABRA Flexi Provision | |
Code | PROVISION | Filled in automatically |
Invoice type | Advance | Advance non-tax document |
Invoicing method | In advance | |
Invoice days in advance | 14 | It is advisable for this value to be greater than the invoice due date period |
Turnover day | 1 | We want documents to always be issued on the first day of the calendar month |
Now we create the first contract:
Contract type | ABRA Flexi Provision | |
Company | Flexi Systems s.r.o. | |
Contract number | 1 | |
Invoicing frequency (months) | 1 | 0 = one-time |
And we add a new contract line item:
Code | FLEXIBEE |
Name | ABRA Flexi License |
Manual price | Yes |
Unit price | 1000 |
Price type | Excluding VAT |
VAT rate | Standard |
Now click the "Generate Invoices" button and several invoices will be created.



