I'm trying to run STA using a clock net that's purely internal (i.e. not a port). Put this

create_clock [get_nets "\user_module.clk"]  -name sys_clk  -period 10

in the SDC but I then get

[ERROR STA-0488] pins type 'Net' is not a pin or port.

Is possible to share test case on this? Else try to load this into openroad and try

get_nets

is extracting right net?

you have to apply the clock to a pin or port just as the message says. get_pins not get_nets

Yup thanks, got it to work, it's just a bit less convenient to know the pin 😅