You can download this HotFix from TIBCO Support Portal (https://support.tibco.com). You will need to provide your TIBCO Support Portal credentials. Once logged in you can the download the hotfix by selecting the “Downloads” -> “Hotfixes” option. Then go to the AvailableDownloads/BusinessWorks/5.13.2/hotfix-01.

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Closed Issues in 5.13.2_HF-001 (This Release)

BW-18831
Feature has been added to improvise the OAuth 2.0 support with ReceiveMail activity.
This is a property base solution.
The name of the property is “com.tibco.bw.plugin.mail.oauth.bufferintervalfornewaccesstoken”.
The default value is “300 seconds”. So, the new access token would be fetched 05 minutes before the existing token expires_in time automatically. User Can configure and override as per their requirement.Here it is recommended not to set this value less than 30 second of token's expires_in time.
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TIBCO ActiveMatrix BusinessWorks 5.13.2 Hotfix-01 is available

You can also download the hotfix using the below link:

https://support.tibco.com/s/hotfixes?id=a014z00000yk9J7AAI

https://support.tibco.com/s/article/TIBCO-BusinessWorks-5-13-2-Hotfix-001-Receive-Mail-OAuth-2-0-feature-upgrade