There was criticism from some that partners were unable to provide them with certain data that would have been helpful to their CSA, or that data was not granular or detailed enough.
Cafwyd beirniadaeth gan rai nad oedd partneriaid yn gallu darparu data penodol iddynt a fyddai wedi bod yn ddefnyddiol ar gyfer eu hasesiad, neu nad oedd y data'n ddigon manwl.