Process builder rule criteria

Question

I am trying to use below condition to update title field on contact in process builder but it is not working.

AND(
(PRIORVALUE([Contact].Account.AccountNumber),"t"),
ISNULL([Contact].Title),
ISCHANGED([Contact].AccountId))

It is giving me error: The formula expression is invalid: Syntax error. Missing ')'

No Matter I add how many ')'

Answer 1

Try below formula if it works for you:

AND
(
   PRIORVALUE([Contact].Account.AccountNumber) = 't',
   ISNULL( [Contact].Title ),
   ISCHANGED( [Contact].AccountId )
)

You need to compare with = sign.

Answer 2

Once Check that if you Checked the Recursion Checkbox and if it is checked, Read the Below point.

1) Cannot use the functions like ISCHANGED, ISNEW or PRIORVALUE in the process criteria, if the advanced options like Recursion is checked in the Object node.