Solution : https://service.sap.com/sap/support/notes/579632 (SAP Service marketplace login required)
Key words :
error message appears indicating, /sapapo/ppm_maintain 517 reason, source code corrections, error occurs, master recipes, integration model, activity network, terms cfm2, apo-relevant, solution implement
Related Notes :
| 937395 | R/3-APO: Activity net is not connected |