https://userapps.support.sap.com/sap/support/knowledge/en/3170251
3170251 - TASKPROCESSING service is not available in SICF | SAP Knowledge Base Article
TASKPROCESSING (/default_host/sap/opu/odata/iwpgw/taskprocessing) service not available in SICF transaction. AND TASKPROCESSING service activation status icon...
not available