3650552 - Task Center Ariba Task Approval Error - 'Ariba' returned 'invalid_grant_saml

• The user is using SAP Task Center integrated with Ariba
• When the user receives the SAP Ariba Task in Task Center, the user can see the tasks successfully however when clicking Approve or Reject an error shows up as: "invalid_grant_saml"
• The Network Trace (HAR) shows an error like this:
  
  ---From HAR Content Response-----
  { "error":
  { "code": "sap.taskcenter.error", "message": "Destination
  
  'Ariba' returned 'invalid_grant_saml",
  "target": null,
  "details": null } } 

• Cloud edition
• SAP Ariba Procurement and others

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