2801167 - Error reported while evaluating detour conditions

After stage approval, the routing rule of the next stage does not seem to execute, the audit log only shows messages that line items were approved and the workflow appers to be hung.

Looking at the MSMP Runtime monitor log, you find:

Error reported while evaluating detour conditions
Error during execution of rule R/F/GRAC_MSMP_DETOUR_SODVIOL
Rule R/F/GRAC_MSMP_DETOUR_SODVIOL is executing ...
Rule R/F/GRAC_MSMP_DETOUR_SODVIOL is executing ...
Rule R/F/GRAC_MSMP_DETOUR_SODVIOL was validated
Rule R/F/GRAC_MSMP_DETOUR_SODVIOL is being validated ...
Rule R/F/GRAC_MSMP_DETOUR_SODVIOL - line items converted to type GRAC_T_REQUEST_RULE_LINE
Rule R/F/GRAC_MSMP_DETOUR_SODVIOL - request header converted to type GRAC_S_REQUEST_RULE_HEADER

Looking at SWI1 t-code for the given work item, you find:

Evaluate detour conditions - Error

SAP GRC Access Control 10.0
SAP GRC Access Control 10.1
SAP GRC Access Control 12.0

An exception with the type CX_SY_FILE_AUTHORITY was raised, but was not handled locally or declared in a RAISING clause. "No authorization for accessing file '\\<domain>\Reports\CUP_005056BF77781ED99F9A77F1119500EA_02_2_1' CL_GRAC_SOD_REPORTING=========CM00I 50 CL_GRAC_SOD_REPORTING=========CP" CL_GRFN_MSMP_RULE_BY_FMODULE P_PROCESS_MSMP_RULE Error reported while evaluating detour conditions |
Error during execution of rule R/F/GRAC_MSMP_DETOUR_SODVIOL Error while evaluating routing rule; check MSMP log for more details OPEN_DATASET_NO_AUTHORITY SWF_RUN_REMOTE_SERVICE S_DATASET , KBA , GRC-SAC-ARQ , Access Request , GRC-SAC-WF , Workflow , How To