Flagging notification in accordance with Chapter 9 Section 10 of the Finnish Securities Markets Act

Basware Corporation, stock exchange release, 15 July 2022 at 1.30 p.m. EEST

Basware Corporation has received on 15 July 2022 the following notification
pursuant to Chapter 9, Section 5 of the Finnish Securities Market Act from Accel
-KKR Capital Partners VI, LP according to which Sapphire BidCo Ltd's holding of
shares has exceeded fifteen (15) percent and total holding of both shares and
financial instruments is over fifteen (15) percent of the total number of shares
and votes in Basware Corporation on 14 July 2022.

Basware Corporation has one series of shares in which each share carries one
vote. The total number of shares and votes is 14,463,936.

The holding of Sapphire BidCo Ltd according to the notification:

                  % of shares  % of shares and voting rights  Total of
                  and voting   through financial instruments  both in %
                    rights
   Resulting        17.73%                  0%                 17.73%
situation on the
    date on
which threshold
 was crossed or
    reached:
  Position of         N/A                   N/A                  N/A
    previous
notification (if
  applicable):

Notified details of the resulting situation following the crossing of the
threshold:

A: Shares and voting rights

Class/type of shares      Number of      % of shares and voting rights
   ISIN code (if           shares
     possible)               and
                           voting
                           rights
       Direct         Indirect   Direct     Indirect
     (SMA 9:5)        (SMA 9:6    (SMA   (SMA 9:6 ja 9:7)
                       ja 9:7)    9:5)
    FI0009008403      2,563,766    0          17.73%           0%
    SUBTOTAL (A)          2,563,766                 17.73%

Additional information:
Change of major shareholdings notified herein relate to the completion of the
tender offer by Sapphire BidCo Ltd in accordance with the tender offer document
dated 25 April 2022.

For more information, please contact:
Katariina Kataja, Investor Relations Manager, Basware Corporation
Tel. +358 40 527 1427, katariina.kataja@basware.com

Distribution:
Nasdaq Helsinki
Main media
investors.basware.com/en

About Basware:
Basware is a leading provider of Networked Procure-to-Pay solutions with the
largest open e-invoicing network in over 180 countries. Our cloud-based
technology enables enterprises to fully manage their spend, mitigate financial
risk and reduce operating costs through automation of finance, procurement,
accounts payable and accounts receivable processes. Our open technology
ecosystem and extensive partner network have helped over 6,500 businesses in 60
countries move towards 100% spend visibility which enables better business
decisions - a concept we call Visible Commerce. Basware's solutions support the
transition to a lower-carbon economy by digitization and automation. Basware is
traded on the Helsinki exchange (BAS1V: HE). Find out more at
https://investors.basware.com/en.