What to tell new employer reason for leaving current role? Help appreciated
Been at current employer for 8 years and been pretty happy for most part. I grew bored of my role so with my old manager's support I applied for a different role internally. This role was at a higher title (as the business head) in a different department, so if I was an external hire I would have got the title and additional pay. Since I was not and an internal hire; by policy it's treated as a "lateral". I was not given any additional money or title. I have grown the business as the head by 300%. Unfortunately, I was advised though I have done very well I could not be"promoted" this year since I'm "new". While no explicit commitments were made at time of hire, I was given inferred assurances that I would be "fixed" in terms of title and pay at the end of year. Pay remains to be seen as we are undergoing end of year compensation process now but I'm very skeptical given how badly the title remediation has gone.
So, in meantime I'm putting some feelers out in market. I love my job and the team, but it's a hard pill to swallow that I'm a whole grade underpaid and under-titled. I'm getting positive responses from back from other firms at the title/grade I should be at.
What should I tell the employers on why I'm considering other roles? Technically I've only been in this job since March.
Thanks in advance!