2789506 - Error 'You are not authorized for activity "Accept" for Purchasing Organization' while approving Service Entry Sheet

• When the approving manager tries to release the  'Service Entry Sheets' from My Inbox app, nothing happens, after choosing 'Approve' the document remains in the Inbox. In the system log, error message 'Update was cancelled - work item is not a user decision' is visible.
• Approver sees error after choosing 'Approve': 'You are not authorized for activity "Accept" for Purchasing Organization 1234'

SAP S/4HANA Cloud Public Edition

1. Create a Service Purchase Order (Manage Purchase Orders) 
2. Create a Service Entry Sheet (Manage Service Entry Sheets - Lean Services) 
3. The 'Service Entry Sheets' is marked for approval and sent to the inbox of the approving manager.
4. The approving manager accesses 'My Inbox'.
5. Approve the Service Entry Sheet, but it remains in the Inbox and Error appears.

Missing approval-specific business catalog for Service Entry Sheet work items in the assigned user role.

Approvers of 'Service Entry Sheets' must be assigned the business catalog SAP_MM_BC_SES_WIAPPROVE_PC. In addition, the user role must contain the appropriate restrictions maintained for the following authorization fields:

• Plant
• Purchasing Group
• Purchasing Organization

Ensure that the required authorization values are maintained in the assigned business role to enable the approval of Service Entry Sheets.

SAP_APS_SAP_WFRT_APP,  /IWWRK/BADI_WF_BEFORE_UPD_IB, CL_MM_PUR_SES_APPR_ACTION_BADI, AUTHORITY-CHECK, /iwwrk/mc_wf_rt_ib022, BR_PROJ_MANAGE_COMM.You are not authorized for activity "Accept" for Plant,You are not authorized for activity "Accept" for Purchasing Group,You are not authorized for activity "Accept" for Goods Movement Type , KBA , MM-PUR-SVC-SES-2CL , Service Entry Sheet for Service Procurement (Public Cloud) , Problem