esa-p is the supplier portal for ESA’s contractual partners, with the following main features:

• controlled access and visibility on ESA contracts (contractual, invoicing and payment information) to Prime- and Sub-contractors;
• submission and approval of electronic invoices and Milestone Achievement Certificates

The esa-p system can be accessed via the following link:

https://esa-p.sso.esa.int/irj/portal

Help documents on esa-p