"Availability issues" refers to problems or difficulties in finding or accessing something that is needed or desired.
Sentences with «availability issues»
The small size of the car has made parking in a college town with parking availability issues easier. (autolist.com)
These programs don't have blackout dates or other award availability issues and instead just assign a cash value to their points. (travelcodex.com)
We've put much love, care, and consideration into the curation of this snack pack, but should there be unforeseen availability issues with certain items, we may have to make equally awesome substitutions. (barefootprovisions.com)