issuing vs issuance

issuing and issuance both are nouns.

Word	Noun	Adjective	Verb	Adverb
issuing	Yes	No	No	No
issuance	Yes	No	No	No

As nouns, issuing and issuance are synonyms defined as:

issuing and issuance: the act of providing an item for general use or for official purposes (usually in quantity)

Other synonyms of issuing include issue.

issuing (noun)	issuance (noun)
the act of providing an item for general use or for official purposes (usually in quantity)	the act of providing an item for general use or for official purposes (usually in quantity)