Hi @Vikas,
I’ve Service Standard Before Provisioning rule deployed in my tenant and for source which I’ve created has no before provisioning rule,
I tried to add/patch that to source but still I couldn’t able add that to source.
I followed above solution provided by @jesvin90 I tried to export that Azure AD source and added rule name & id and again exported back no result still its showing beforeProvisioningRule : null
Could you please assist if there is any other approach to do so?