The phrase "budgetary issues" refers to problems or difficulties related to money and financial planning. It means that there are challenges or concerns with managing and allocating funds in a budget. Full definition
You might add a fourth one - line section to keep the client current on budgetary issues. (slaw.ca)
All of the operational, contractual, and budgetary issues involved in an overhaul of such magnitude may not have been fully resolved before he left. (dcschoolfoodproject.org)
Several civil society groups have formed to try to fill this gap, despite severe budgetary issues. (blog.politics.ox.ac.uk)