---
article_id: KB0398668
article_type: FAQ
component_ids:
  - BNS-ARI-SS
  - BNS-ARI-SS-EVT
  - SBN-AN
component_descriptions:
  - SAP Business Network for Procurement & Supply Chain
  - Strategic Sourcing
  - Strategic Sourcing > Sourcing Events
products:
  - SAP Ariba Sourcing, cloud edition
  - SAP Business Network for Procurement and SAP Business Network for Supply Chain
personas:
  - Supplier
language: en
created: 2026-01-27
updated: 2026-04-09
source: Knowledge Base
url: https://support.ariba.com/item/view/KB0398668
connect_url: https://support.ariba.com/item/view/KB0398668?min=1
sap_for_me_url: https://me.sap.com/notes/KB0398668
---

# Why do I receive the error The username and password pair you entered was not found when attempting to sign into a sourcing event using the invitation link provided?

## Symptom

Why do I receive the error The username and password pair you entered was not found when attempting to sign into a sourcing event using the invitation link provided?

## Cause

The invitation link that was provided may have expired.

## Resolution

If you have already linked your account with the customer that has sent the invitation, you will want to follow these steps to access the event:

1. Go to [https://proposals.seller.ariba.com](https://proposals.seller.ariba.com)
2. Sign in with your **username** and **password**

Once you are signed in, this will take you to **Ariba Proposals and Questionnaires**. You will want to **click** the customer that you are to complete the event for. This will show all events that you are connected to for that customer.

If the link needs to be replaced as it is a non-working link, you will need to contact your customer and request a new invitation.

## See Also

A working invitation link will bring you to a screen showing **Connect with \[Customer name\] on SAP Business Network to collaborate**. that gives you the option to **Create new account** for a new supplier account or **Use existing account** for existing accounts.

A similar issue can occur when you receive a message saying the link has expired. Please refer to [why am I receiving an error saying the link has expired when trying to access a sourcing event?](https://support.ariba.com/item/view/181934) for more information on this topic.

## Keywords

Username,login,event invitation,error,questionnaire,connect with