I got many error on a approval Flow that first register and then update a SharePoint Online List after the approval.
I read that the limit of the flow was 7 days.
Flow start at: Ran at 10/1/2018 17:14:17
Error Message on Update SharePoint List task:
"message": "Error from token exchange: Bad Key authorization token. Token must be a valid JWT signed with HS256\r\nFailed to validate token: IDX10223: Lifetime validation failed. The token is expired.\nValidTo: '01/11/2018 14:41:22'\nCurrent time: '01/15/2018 14:17:59'.\r\nbad token. Error=The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters. \r\n"
